Michael Matthew Groat PhD's Genealogical Database
Individuals: 97,713 Families: 61,838
Gedcom Last Modified: December 14, 2025 00:59:10
Guillaume Longue-Épée de Normadie
- Preferred Name: Guillaume Longue-Épée de Normadie[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
- Alternate Name: William Longsword
- Gender: M
- Christening: 912 in Rouen, France at LATI: N9.4412 LONG: E0.0561 with note: Baptized a Christian by Franco, Archbishop of Rouen
- Assassinated: 17 DEC 942 in Picquigny on the Somme, Picardy at LATI: N9.5 LONG: E0.8333 with note: Description: William Longsword was assassinated on the orders of Arnulf I, Count of Flanders, while at a peace conference.
Standardization
- Death: 17 DEC 942 in Picquigny, Somme, Picardie, France at LATI: N9.9449 LONG: E0.1405
- FSID: 9HRG-JDL
- Norman+rebellion: ABT 933 in Rouen, Normandy, Neustria at LATI: N9.4447 LONG: E0.0933 with note: Description: Riouf of Evreuxand and a group of Normans who felt William had become too 'French' rebelled against William's rulership and besieged him in Rouen. With a decisive battle William proved his authority over Normandy.
- http://familysearch.org/v1/TitleOfNobility: Count of RouenBET 927 AND 942 with note: The title of Duc was not used then, he was known as Comte de Rouen.
- Adela+the+Holy: with note: Adela of France, known also as Adela the Holy or Adela of Messines;, was, by marriage, Duchess of Normandy, and Countess of Flanders (1035–1067).
- Occupation: Ruler Of NormandyBET 927 AND 942 with note: Extensive research done through family line and Wikipedia.
- Birth: 28 AUG 893 in Rouen, Seine,-Maritime, Haute-Normandie, France at LATI: N9.5 LONG: E0
- Duc de Normandie (927-942): BET 927 AND 942 with note: GEDCOM data
- http://familysearch.org/v1/TitleOfNobility: Richard I of Normandy927 with note: Family tree, Wikipedia, Google
- Burial: 18 DEC 942 in Rouen, Seine-Maritime, Haute-Normandie, France at LATI: N9.5 LONG: E0
- Notes:
=== Life Sketch ===
William Longsword was the son of Rollo, founder of the Rollonid dynasty that would become dukes of Normandy and after 1066, kings of England. In William's day, however, the Rollonid principality was still a fragile entity centered around Rouen and, in terms of Realpolitik, not extending far west of the Seine. Most of William's career was spent in relative obscurity, but in the late 930s he suddenly emerged onto the stage of Frankish royal politics, first because of his war with Arnulf of Flanders, and then because of his support for King Louis IV (d'Outremer) at a time when Louis' star seemed to be fading. In December 942, at the peak of his good relations with Louis, Arnulf called for a peace conference with William; there, William was murdered (traditionally, Arnulf is said to have arranged the murder).
5shellymk3@gmail.com
Shelly shared-All the biographies that I have
found on William state that he was born in either Rouen, Normandy or Bayeux, Normandy and that he was killed by followers of Arnulf of Flanders I, Dec. 17, 942 after leaving a "peace treaty" meeting with Arnulf on the Island of Picquiny
(an island in the Somme River) in Picardy, Normandy.
∼
Leader of the Normans, 2nd Patrician of Normandy, Jarl, Duke of Normandy.
AKA- William Longsword, Duke of Normandy, Count of Rouen
Husband of -Sprota 'Adela' de Bretagne de St. Liz (912/940)
-Assassinated-
Guillaume (William) I Duke of Normandy "Long Sword"
From the blog: http://ancestoranecdotes.blogspot.com/2010/08/guillaume-william-i-duke-of-normandy.html
He is 17th Great Grandfather of Frances Braden Hooks Hensel. My Maternal grandmother.
Willi
William I Longsword - Wikipedia, the free encyclopedia
William I Longsword
From Wikipedia, the free encyclopedia
"Guillaume Longue-Épée" redirects here. For others of the same name, see William Longsword.
William I "Longsword"
William longsword statue in
William Longsword - Find-a-grave
William Longsword was the son of Rollo, founder of the Rollonid dynasty that would become dukes of Normandy and after 1066, kings of England. In William's day, however, the Rollonid principality was s
William Longsword
From Wikipedia, the free encyclopedia
William Longsword (French: Guillaume Longue-Épée, Latin: Willermus Longa Spata, Old Norse: Vilhjálmr Langaspjót; c. 893 – 17 December 942) was the second ruler of Normandy, from 927 until his assassin
Guillaume I De St. Martin was my 30th GGF tentatively.
Guillaume I De St. Martin was my 30th Great Grandfather tentatively.
wikipedia.org/wiki/William-Longsword
on 17 December 942 at Picquigny on an island on the Somme, William was ambushed and killed by followers of Arnulf while at a peace conference to settle their differences.[18][28]
BIO
BIO: from http://fmg.ac/Projects/MedLands/NORMANDY.htm#Gerlocdiedafter969 as of 1/16/2016
GUILLAUME (Rouen [900/05]-murdered Pequigny 17 Dec 942, bur ---, transferred [1064] to Rouen Cathedral[52])
=== Parents incorrect ===
This is the son of Rollo. Someone messed up this line, bad.
=== *William Longsword Duke of Normandy ===
*William Longsword Duke of Normandy
born 0876 Normandie, Neustria
died 0942 France
father:
*Rollo "the Dane"(Hrolf the Ganger) Rognaldsson Duke of Normandy
born 0846
died 0932
mother:
*Papia de Senlis
born 0848
siblings:
*Adáele (Gerloc) of Normandy
born Abt 0897 Of, Normandie, Neustria
died Aft 14 Oct 0942
children:
*Raoul Count of Bayeux & Ivry
spouse (2nd):
*Espriota de Bretagne
born abt 0910
married Abt 932 Of, Normandy, France
children:
*Richard I Duke of Normandy
born 0933
died 0996
biographical and/or anecdotal:
2nd Duke of Normandy from 927 to 943`, was also Duke of Aquitaine and died in 942,
slain by Arnulf of Flanders with whom he had in good faith gone to confer.
First wife *Ledgarde Duchess of Normandy
notes or source:
ancestry.com
The Paternal Ancestry of Homer Beers James & ancestry.com
Preferred Parents:
Father: Father Of Guillaume I de St Martin,
Mother: Mother Of Guillaume I de St Martin,
Family 1: Luitgardis de Vermandois, b. 19 JUL 920 in Vermandois, Neustria, Normandy, France d. 9 FEB 978 in Matemoutier Abbey, Vermandois, Normandie, France
Family 2: Sprota ,
Family 3: Sprota , b. 21 JUN 911 in Bretagne, Indre, Centre-Val de Loire, France d. 9 FEB 1001 in Ponteaudemer, Normandy, France
- m. 932 in Normandy, , , France
- m. 931 in Rouen, Seine-Maritime, Upper Normandy, France
- Richard 'Sans-Peur' I, b. 28 AUG 933 in Fécamp, Haute-Normandie, France d. 20 NOV 996 in Fécamp, Seine-Maritime, Haute-Normandie, France
Sources:
- Title: Legacy NFS Source: William Duke Of Normandy -
Author: Royal Ancestors of Magna Charta Barons., Collins., Dallas, Texas. 1959
Note: See Clare, Malet, && Bigod Family Chart
Page: Migrated from user-supplied source citation: urn:familysearch:source:2033102610
- Title: Rollo and Rognvald in Three Hundred Years of a Norman House, pgs. 25-26, 27-28, 29, 31 and 33 [See document in the Memories section]
Author: Three Hundred Years of a Norman House, pgs. 25-26, 27-28, 29, 31 and 33
Publication: Name: https://www.familysearch.org/photos/artifacts/133197369;
Note: Rollo and Rognvald in Three Hundred Years of a Norman House, pgs. 25-26, 27-28, 29, 31 and 33 [See document in the Memories section]
Page: Rollo and Rognvald in Three Hundred Years of a Norman House, pgs. 25-26, 27-28, 29, 31 and 33 [See document in the Memories section]
- Title: Family of Herbert II de Vermandois in Descendancy of Adam, pgs. 622-626 [See Document in the memories section]
Author: Descendancy of Adam, pgs. 622-626
Note: Family of Herbert II de Vermandois in Descendancy of Adam, pgs. 622-626 [See Document in the memories section]
Page: Family of Herbert II de Vermandois in Descendancy of Adam, pgs. 622-626 [See Document in the memories section]
- Title: William Longsword, Wikipedia
Publication: Name: https://en.wikipedia.org/wiki/William_Longsword;
Note: William Longsword (French: Guillaume Longue-Épée, Latin: Willermus Longa Spata, Old Norse: Vilhjálmr Langaspjót; c. 893 – 17 December 942) was the second ruler of Normandy, from 927 until his assassination in 942.[1]
He is sometimes anachronistically dubbed "duke of Normandy", even though the title duke (dux) did not come into common usage until the 11th century.[2] Longsword was known at the time as count (Latin comes) of Rouen.[3][4] Flodoard—always detailed about titles—consistently referred to both Rollo and his son William as principes (chieftains) of the Norse...
See full text in Memories under the name:
William Longsword - From Wikipedia, the free encyclopedia.
- Title: Millennium File
Publication: Name: http://search.ancestry.com/cgi-bin/sse.dll?db=millind&h=103716543&ti=0&indiv=try&gss=pt;
- Title: Guillaume Longue-Épée de Normadie
Author: Chapter 1. DUKES of NORMANDY 911-1106 Chapter 2. DUKES of NORMANDY 1144-1204 (ANJOU) Credible source of the family and Dukes of Normandie.
Publication: Name: https://fmg.ac/Projects/MedLands/NORMANDY.htm;
- Title: Guillaume (Normandie) de Normandie (abt.0900-0942) | WikiTree FREE Family Tree
Author: https://www.wikitree.com/wiki/Normandie-41 https://www.geni.com/people/William-Longsword/6000000001066179151?through=6000000002043263529#/tab/source
Publication: Name: https://www.wikitree.com/wiki/Normandie-41;
Note: Guillaume (William I) "Duke of Normandy, Longsword, Longue Épeé" de Normandie formerly Normandie
Born about 0900 in Normandie, Francemap
Son of Rollo (Normandie) of Normandy and Poppa (Bayeux) de Senlis
Brother of Niederga Hrolfsdottir (Normandie) de Normandie, Robert Ragnvaldsson [half], Kaðlín Hrolfsdottir [half], Gerloc (Normandie) d'Aquitaine, Griselle Rollosdatter [half] and Gaultier (Normandie) de Caen [half]
Husband of Sprote (Bretagne) de Normandie — married [date unknown] [location unknown]
Husband of Luitgarde (Vermandois) de Normandie — married 0935 (to 0942) [location unknown]
DESCENDANTS descendants
Father of Richard (Normandie) de Normandie
Died 17 Dec 0942 in Picquigny, Somme, Picardie, Francemap
Profile managers: European Aristocrats Project WikiTree private message [send private message], Richard Ragland private message [send private message], and Wendy Hampton private message [send private message]
Profile last modified 14 Dec 2019 | Created 19 Dec 2011
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European Aristocracy
William I (Normandie) de Normandie was a member of aristocracy in Europe.
Join: European Royals and Aristocrats Project
Discuss: EUROARISTO
Notice of resolution of ambiguous parentage This profile has been edited with regard to parents in accordance with principles established by the European Aristocracy user-group. Medieval genealogy is not an exact science, and digital collaborative genealogy must therefore occasionally make choices where old-fashioned print-scholarship did not have to. The parents (or lack of parents) of the person described in this profile were decided upon in consultation with primary sources especially as collected in the Foundation for Medieval Genealogy’s Medieval Lands project.
See the link for the Foundation for Medieval Genealogy page for our documented knowledge of this person.
Page: Profile managers: European Aristocrats Project WikiTree https://www.geni.com/people/William-Longsword/6000000001066179151?through=6000000002043263529#/tab/source
- Title: Legacy NFS Source: Guillaume I "Long Sword" Duke Of Normandy - birth: 0893;
Author: 14495.ftw, Not Given, Not Given
Note: birth: 0893;
death: 17 December 0942; France
Page: Migrated from user-supplied source citation: urn:familysearch:source:2808309974
- Title: Pedigree of Leutgard de Vermandois in Descendany of Adam, pg. 4049 [See document in the Memories section]
Author: Descendany of Adam, pg. 4049
Note: Pedigree of Leutgard de Vermandois in Descendany of Adam, pg. 4049 [See document in the Memories section]
Page: Pedigree of Leutgard de Vermandois in Descendany of Adam, pg. 4049 [See document in the Memories section]
- Title: The Lives of My Ancestors: William Longsword, Count of Rouen
Author: STEPHEN AND YHANA This Blog is dedicated to my ancestors. https://thelivesofmyancestors.wordpress.com/about/
Publication: Name: https://thelivesofmyancestors.wordpress.com/2019/02/07/william-longsword-count-of-rouen-893-942/;
Note: Name: William Longsword
Birth: 893
Place of Birth: Rouen
Father: Rollo the Dane
Mother: Poppa
Spouse(s):
Luitgarde of Vermandois
Sprota
Issue:
Longsword had no children with his wife Luitgarde. He fathered his son, Richard the Fearless, with Sprota who was a Breton captive and his concubine. Richard, then aged 10, succeeded him as Duke of Normandy in December 942.
Titles:
Count of Rouen
Death: 17 December 942 (aged about 48/9)
Place of Death: Picquigny on the Somme
House: House of Normandy
Heraldry: Blason du duché de Normandie
Life and Times of William I, 2nd Duke of Normandy (876? – 942)
Who is William I?
The second ruler of Normandy, William Longsword, or William I was technically the second Duke of Normandy, but instead, held the title of Count of Rouen at the time. This was because the official use of the Duke title only started in the 11th Century, with his grandson, Richard II, being the first one to carry it.
The exact date of birth of William I remains unknown, probably because he was born overseas, but most historians have placed it between 876 and 893. He is the only son of Rollo, the first leader of Normandy, and founder of the Rollonid dynasty (which gave rise to the dukes of Normandy) to his wife Poppa de Bayeux. During this time, Rollo was a pagan while Poppa was a devout Christian. He was a Viking chief who often traveled by sea in search of lands to ransack. From the account of Dudo of Saint Quentin, Poppa was the daughter of Count Berengar, and others have claimed Guy, Count of Senlis as his father.
William I sired only one son, Richard the Fearless, with Sprota. He is considered among the leaders in the Northern kingdom who have treated the King of France as an ally at times, and a foe during several instances.
Early reign
While Rollo was still alive, he already passed his leadership to William I, who was also elected by the Normans and Bretons during a meeting sometime in 927. He was also recommended by King Charles the Simple. Rollo lived for a number of years to witness his reign.
William I was said to have been too Gallic that he faced a Norman uprising during the beginning of his rule, resenting him for it. He sent Sprota his common law wife to Fecamp to secure her pregnancy, who later gave birth to their son Richard I. William I proved to the Normans that he was worthy of his position when he won the battle against Riouf of Evreux who fought him in Rouen.
Relations with Flanders
When Rollo was still the active Normandy leader, Arnulf I, Count of Flanders took on the fortress of Eu. In 939, Herluin, Count of Montreuil, appealed to William I after losing the fight for his principality. Montreuil was then restored, for which Herluin extended his gratitude towards William I. The Normans, however, were in charge of maritime affairs in Picardie and prevented the south expansion of Flanders.
Losing Montreuil made Arnulf I angry with William I, which was aggravated by the intertwined conflicts with Louis IV, who was incapable of keeping his barons at bay. It hampered Arnulf I’s high ambitions, declaring William I, who helped Herluin, as a bonafide enemy. William I was excommunicated in the process, particularly for destroying many of Arnulf I’s properties.
Christian in more ways
Unlike his pagan father, William I seemed to be a genuine Christian.
He gave generous donations to the Church, and at one point considered retiring from his rule of Normandy.
He is known to have created a new Normandy, restoring peace and order in the region. Some have viewed his rule as a success, attributing the Scandinavian graft on Roman France, founding the state in 911, which survived the crisis that plagued the Scandinavia and the west.
Brittany invasion
It was a rough time in Brittany, which was occupied by Normans from the Loire in 933. Rebellion broke out from the local Bretons led by Alan Barbetorte and Juhel Berenger against the Normans, but were defeated by William I’s troops. He took Brittany, the Channel Islands, Cotentin and Avranches with the help of King Ralph, in exchange of an homage from a vassal.
Juhel made peace with the Normans while Alan moved away towards the Channel. As such, William Longsword was essentially the Duke of both Normans and Bretons. From vague historical accounts, Brittany seemed a part of his occupation, instead of just a conquest. In other words, Brittany was treated as a protectorate for the Normans.
William I also wanted to control the Irish and Norwegian elements that have been built in Bessin and Cotentin. While the rebels wanted those places to be free of any political authority, they have no choice but be dependent. This was not unusual in a Frankish society. William I took advantage of this and became heavily involved in fighting off aristocracy leaders, including King Louis IV. He may have allied with Hugh the Great, but he managed to get a concession to his father Rollo from King Louis IV.
Working with Carolingians
Sometime in 933, Normandy has stretched out its claim, with William I paying tribute to King Raoul, who later became allied to his father-in-law Herbert II, for the Breton seas. Rollo was opposed to this, but William recognized him as the King of Western Francia even if he struggled to be the ruler of Northern France. There was no sovereign over that territory, hence it was not considered as part of Brittany. However, it was viewed as a way of conceding by a Carolingian king more than 60 years prior, on the parts of the Cotentin and Avranches.
A year later, a Norman named Rioulf led a rebellion against William I, which apparently began in Evrecin. This was believed to be caused by his preferential option for the Franks. Rioulf, who was resistant to Rouen authority, and perhaps represented the Viking ringleaders, was then defeated by William I.
Meanwhile, King Raoul died in January 936. William I promised loyalty to Louis IV, who at the time was exiled in England, succeeded him. In 1939 however, he found himself forming an alliance with Hugh the Great against King Louis IV. But with the intercession of the Pope, the war was over, with the king restoring William I’s position in Normandy. His expansion into Breton lands, however, was limited by the king.
Personal life
William I married Luitgarde, a Countess since birth, being the daughter of Herbert II, Count of Vermandois. The dowry he received out of their wedding allowed him to own huge lands in Longueville, Coudres and Illiers l’Eveque. His extension towards the fortress of Montreuil brought about a major conflict with Arnulf I that led to his eventual murder in 942. He also orchestrated the marriage of his sister Gerloc and William, who was Count of Poitou, with the blessing of Hugh the Great.
Death
William I died tragically in the hands of Arnulf’s and Theobald of Blois’ supporters during a meeting where they planned to settle their conflict on December 17, 942 on an island in the Somme river. Shortly before the meeting, the Count of Flanders, who has been opposing the rise of Normandy, arranged a peace treaty in Picquigny. In spite of his agreement by signing the corresponding document, he was believed to be treacherously murdered by Baldwin, who was the son of the Count of Cambrai, having acted upon the instructions of Arnulf I.
Moments later, William’s I’s loyal following retrieved his dead body from the site where they found a key, which is used for opening a box containing a monk’s garment. He was then entombed in the Cathedral of Rouen, which took place after the ninth year in office of Archbishop Maurilus. His widow, Luitgarde later died many years later in 985.
Before his death, William I had already been succeeded by his son Richard by his own choice, as the third leader of Normandy at the young age of 10.
- Title: Rollo and Rogenvald in The Ancestry of her Majesty Queen Victoria and of his Royal Highness Prince Albert, pg. 34-37 [See document in the Memories section]
Author: The Ancestry of her Majesty Queen Victoria and of his Royal Highness Prince Albert, pg. 34-37
Publication: Name: https://www.familysearch.org/photos/artifacts/139981304;
Note: Rollo and Rogenvald in The Ancestry of her Majesty Queen Victoria and of his Royal Highness Prince Albert, pg. 34-37 [See document in the Memories section]
Page: Rollo and Rogenvald in The Ancestry of her Majesty Queen Victoria and of his Royal Highness Prince Albert, pg. 34-37 [See document in the Memories section]
- Title: Title Burke's "The Royal Families of England, Scotland and Wales"
Author: Burke's The Royal Families of England, Scotland and Wales, pgs. ii, iii, iv [See document in the Memories section]
Page: Dukes of Normandy in Burke's The Royal Families of England, Scotland and Wales, pgs. ii, iii, iv [See document in the Memories section]
- Title: Rollo, Rognvald, William Longsword, Richard I, Richard II in William the Conqueror, The Normand Impact Upon England, pg. 16-17 [See document in the Memories section]
Author: William the Conqueror, The Normand Impact Upon England, pg. 16-17
Publication: Name: https://www.familysearch.org/photos/artifacts/133390886;
Note: Rollo, Rognvald, William Longsword, Richard I, Richard II in William the Conqueror, The Normand Impact Upon England, pg. 16-17 [See document in the Memories section]
Page: Rollo, Rognavald, William Longsword, Richard I, Richard II in William the Conqueror, The Normand Impact Upon England, pg. 16-17 [See document in the Memories section]
- Title: Children of Herbert II de Vermandois in Abrege Chronologique des Grands Fiefs, pg. 11 [See document in the memories section]
Author: Abrege Chronologique des Grands Fiefs, pg. 11
Note: Children of Herbert II de Vermandois in Abrege Chronologique des Grands Fiefs, pg. 11 [See document in the memories section]
Page: Children of Herbert II de Vermandois in Abrege Chronologique des Grands Fiefs, pg. 11 [See document in the memories section]
- Title: Millennium File
Publication: Name: http://search.ancestry.com/cgi-bin/sse.dll?db=millind&h=10379763&ti=0&indiv=try&gss=pt;
- Title: The ancestry of William Clopton of York County, Virginia : with records of some of his descendants, to which are added royal li
Publication: Name: http://search.ancestry.com/cgi-bin/sse.dll?db=genealogy-glh07714875&h=52&ti=0&indiv=try&gss=pt;
- Title: The Ancestry of her Majesty Queen Victoria and of his Royal Highness Prince Albert, pg. 37-38
Page: William Longsword and Richard I, Duke of Normandy, in The Ancestry of her Majesty Queen Victoria and of his Royal Highness Prince Albert, pg. 37-38 [See document in the Memories section]
- Title: Counts of Vermandois in Ataviae Regiae, pg. 43-44 [See document in the Memories section]
Author: Ataviae Regiae, pg. 43-44
Note: Counts of Vermandois in Ataviae Regiae, pg. 43-44 [See document in the Memories section]
Page: Counts of Vermandois in Ataviae Regiae, pg. 43-44 [See document in the Memories section]
- Title: Leutgard (Luitgardis) de Vermandois in the Foundation for Medieval Genealogy ~http://fmg.ac/Projects/MedLands/nfravalver.htm#Luitgarddiedafter977 [See document in the Memories section]
Publication: Name: https://www.familysearch.org/photos/artifacts/139559582;
Note: Leutgard (Luitgardis) de Vermandois in the Foundation for Medieval Genealogy ~http://fmg.ac/Projects/MedLands/nfravalver.htm#Luitgarddiedafter977 [See document in the Memories section]
Page: Leutgard (Luitgardis) de Vermandois in the Foundation for Medieval Genealogy ~http://fmg.ac/Projects/MedLands/nfravalver.htm#Luitgarddiedafter977 [See document in the Memories section]
- Title: Herbert II, Leutgard and Alix de Vermandois in Les Carlovingiens et la France, Vol. II, pgs. 60-61 and 80 [See document in the Memories section]
Author: Les Carlovingiens et la France, Vol. II, pgs. 60-61 and 80
Publication: Name: https://www.familysearch.org/photos/artifacts/139559143;
Note: Herbert II, Leutgard and Alix de Vermandois in Les Carlovingiens et la France, Vol. II, pgs. 60-61 and 80 [See document in the Memories section]
Page: Herbert II, Leutgard and Alix de Vermandois in Les Carlovingiens et la France, Vol. II, pgs. 60-61 and 80 [See document in the Memories section]
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