Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou 900

Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou , 900–963 (aged 63 years)

Name Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou

Name: Guillaume I-III // Duc d'Aquitaine 935-963, Comte de Poitou
Given names: Guillaume I-III
Name suffix: Duc d'Aquitaine 935-963, Comte de Poitou

Name William III … Duke of Aquitaine

Name: William III // Duke of Aquitaine
Given names: William III
Name suffix: Duke of Aquitaine

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Source citation	Genealogics - Leo van de Pas Citation details: http://genealogics.org/getperson.php?personID=I00020102&tree=LEO Text: Europäische Stammtafeln, Band II, Frank Baron Freytag von Loringhoven, 1975, Isenburg, W. K. Prinz von. Page 28 ~Burke's Guide to the Royal Family, London, 1973 . 310 Caroli Magni Progenies, Neustadt an der Aisch, 1977 , Rösch, Siegfried. 165 Biogr. details drawn from Wikipedia .
Source citation	Wikipedia Citation details: https://en.wikipedia.org/wiki/William_III,_Duke_of_Aquitaine

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Note	BIOGRAPHY Guillaume I-III, called 'Towhead' ('Tête d'étoupe') from the colour of his hair, was born in Poitiers about 900, the son of Ebalus Mancer, comte de Poitou and Aremburgis. He claimed the duchy of Aquitaine on his father's death, but the royal chancery did not recognise his ducal title until the year before his own death. He was 'count of the duchy of Aquitaine' from 959 and duke of Aquitaine from 962 to his death. He was also the count of Poitou (as Guillaume I) from 935 and count of Auvergne from 950. The primary sources for his reign are Ademar de Chabannes, Dudo of Saint-Quentin, and Guillaume of Jumièges. In 935 Guillaume married Gerloc of Normandy, daughter of Rollo, the Viking leader to whom Charles 'the Simple' had given Normandy in 911. Rollo had died in 932. Guillaume and Gerloc (renamed Adele) had a son and heir Guillaume who would have progeny. Shortly after the death of King Raoul of France in 936, Guillaume was compelled to forfeit some land to Hugues 'the Great', duke of The Franks, comte de Paris by Raoul's successor Louis IV 'd'Outremer'. He did it with grace, but his relationship with Hugues thenceforward deteriorated. In 950 Hugues was granted the duchies of Burgundy and Aquitaine. He tried to conquer Aquitaine with Louis' assistance, but Guillaume defeated them. Lothar I, Louis' successor as king of France, feared the power of Guillaume. In August 955 Lothar joined Hugues to besiege Poitiers, which resisted successfully. Guillaume, however, gave battle and was routed. After the death of Hugues in 956, his son Hugues Capet was named duke of Aquitaine, but he never tried to take up his fief, as Guillaume became reconciled with Lothar. Guillaume was given the abbey of Saint-Hilaire-le-Grand, which remained in his house after his death. He also built a library in the palace of Poitiers. Guillaume retired to the abbey of Saint-Cyprien in Poitiers and left the government to his son Guillaume II-IV. He died at Poitiers on 3 April 963.

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Note

BIOGRAPHY
Guillaume I-III, called 'Towhead' ('Tête d'étoupe') from the colour of his hair, was born in Poitiers about 900, the son of Ebalus Mancer, comte de Poitou and Aremburgis. He claimed the duchy of Aquitaine on his father's death, but the royal chancery did not recognise his ducal title until the year before his own death. He was 'count of the duchy of Aquitaine' from 959 and duke of Aquitaine from 962 to his death. He was also the count of Poitou (as Guillaume I) from 935 and count of Auvergne from 950. The primary sources for his reign are Ademar de Chabannes, Dudo of Saint-Quentin, and Guillaume of Jumièges.

In 935 Guillaume married Gerloc of Normandy, daughter of Rollo, the Viking leader to whom Charles 'the Simple' had given Normandy in 911. Rollo had died in 932. Guillaume and Gerloc (renamed Adele) had a son and heir Guillaume who would have progeny.

Shortly after the death of King Raoul of France in 936, Guillaume was compelled to forfeit some land to Hugues 'the Great', duke of The Franks, comte de Paris by Raoul's successor Louis IV 'd'Outremer'. He did it with grace, but his relationship with Hugues thenceforward deteriorated. In 950 Hugues was granted the duchies of Burgundy and Aquitaine. He tried to conquer Aquitaine with Louis' assistance, but Guillaume defeated them. Lothar I, Louis' successor as king of France, feared the power of Guillaume. In August 955 Lothar joined Hugues to besiege Poitiers, which resisted successfully. Guillaume, however, gave battle and was routed.

After the death of Hugues in 956, his son Hugues Capet was named duke of Aquitaine, but he never tried to take up his fief, as Guillaume became reconciled with Lothar. Guillaume was given the abbey of Saint-Hilaire-le-Grand, which remained in his house after his death. He also built a library in the palace of Poitiers.

Guillaume retired to the abbey of Saint-Cyprien in Poitiers and left the government to his son Guillaume II-IV. He died at Poitiers on 3 April 963.

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Media object	William_III_Duc_Aquitaine.jpg

		alive dead

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Guillaume has 1 great-grandfather and 1 great-grandmother recorded (2 in total).

Biological grandparents of father (2)

Parents Ramnulf I … de Poitou Duke of Aquitaine + Bilichild de Maine (Marriage) of Ramnulf II … Comte de Poitou

1 Ramnulf I … de Poitou Duke of Aquitaine 815–866

2 Bilichild de Maine –

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Guillaume has one grandfather recorded.

Biological parents of father (1)

Partnership Ramnulf II … Comte de Poitou + … …

1 Ramnulf II … Comte de Poitou 845–890

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Guillaume has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Guillaume has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Guillaume has 1 father and 1 mother recorded (2 in total).

Biological parents (2)

Marriage Ebalus Mancer … Comte de Poitou, Duc d'Aquitaine + Aremburgis …

1 Ebalus Mancer … Comte de Poitou, Duc d'Aquitaine 870–934

2 Aremburgis … –

Parents-in-law

generation +1 no blood relationship

Guillaume has 1 father-in-law and 1 mother-in-law recorded (2 in total).

Marriage with Gerloc of Normandy (2)

Marriage Rollo … duke of Normandy + Poppa …

1 Rollo … duke of Normandy 860–932

2 Poppa … –

Co-parents-in-law

same generation no blood relationship

Guillaume has 1 co-father-in-law and 1 co-mother-in-law recorded (2 in total).

Parents-in-law of biological children (2)

Marriage Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou + Emma de Blois

1 Thibaut I the Deceiver … Comte de Blois et Chartres 913–975

2 Liutgarde de Vermandois 915–979

Partners

same generation no blood relationship

Guillaume has one female partner recorded.

Partner of Guillaume (1)

1 Gerloc of Normandy –962

Partner chains

same generation no blood relationship

Guillaume has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Guillaume has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Guillaume has one brother-in-law recorded.

Siblings of partners (1)

Marriage with Gerloc of Normandy

1 William I Longsword … Duke of Normandy 893–942

Co-siblings-in-law

same generation no blood relationship

Guillaume has one co-sister-in-law recorded.

Partners of siblings-in-law (1)

Partners of William I Longsword … Duke of Normandy

1 Sprota … –

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Guillaume has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Guillaume has one nephew recorded.

Children of siblings of partners (1)

Brother William I Longsword … Duke of Normandy of partner Gerloc of Normandy

1 Richard I the Fearless … Duke of Normandy 933–996

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Guillaume has one son recorded.

Biological children (1)

Parents Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou + Gerloc of Normandy

1 Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou 935–993

Children-in-law

generation -1 no blood relationship

Guillaume has one daughter-in-law recorded.

Partners of biological children (1)

Son Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou

1 Emma de Blois 950–1003

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Guillaume has one grandson recorded.

Biological grandchildren (1)

Parents Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou + Emma de Blois

1 Guillaume III-V le Grand … Duc d'Aquitaine 996-1030, Comte de Poitou 969–1030

Grandchildren-in-law

generation -2 no blood relationship

Guillaume has one granddaughter-in-law recorded.

Partners of biological grandchildren (1)

Marriage Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou + Gerloc of Normandy

1 Agnes de Bourgogne 995–1068

Summary for the shown extended family

The extended family of Guillaume has 18 members (including Guillaume). (additional members of the partner chains are not counted)

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Guillaume has one great-grandmother recorded.

Biological grandparents of father (1)

Parents Ramnulf I … de Poitou Duke of Aquitaine + Bilichild de Maine (Marriage) of Ramnulf II … Comte de Poitou

1 Bilichild de Maine –

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Guillaume has no grandparents recorded.

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Guillaume has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Guillaume has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Guillaume has one mother recorded.

Biological parents (1)

Marriage Ebalus Mancer … Comte de Poitou, Duc d'Aquitaine + Aremburgis …

1 Aremburgis … –

Parents-in-law

generation +1 no blood relationship

Guillaume has one mother-in-law recorded.

Marriage with Gerloc of Normandy (1)

Marriage Rollo … duke of Normandy + Poppa …

1 Poppa … –

Co-parents-in-law

same generation no blood relationship

Guillaume has one co-mother-in-law recorded.

Parents-in-law of biological children (1)

Marriage Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou + Emma de Blois

1 Liutgarde de Vermandois 915–979

Partners

same generation no blood relationship

Guillaume has one female partner recorded.

Partner of Guillaume (1)

1 Gerloc of Normandy –962

Partner chains

same generation no blood relationship

Guillaume has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Guillaume has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Guillaume has no siblings-in-law recorded.

Co-siblings-in-law

same generation no blood relationship

Guillaume has one co-sister-in-law recorded.

Partners of siblings-in-law (1)

Partners of William I Longsword … Duke of Normandy

1 Sprota … –

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Guillaume has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Guillaume has no nephews or nieces recorded.

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Guillaume has no children recorded.

Children-in-law

generation -1 no blood relationship

Guillaume has one daughter-in-law recorded.

Partners of biological children (1)

Son Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou

1 Emma de Blois 950–1003

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Guillaume has no grandchildren recorded.

Grandchildren-in-law

generation -2 no blood relationship

Guillaume has one granddaughter-in-law recorded.

Partners of biological grandchildren (1)

Marriage Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou + Gerloc of Normandy

1 Agnes de Bourgogne 995–1068

Summary for the shown extended family

The extended family of Guillaume has 9 members (including Guillaume). (additional members of the partner chains are not counted)

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Guillaume has one great-grandmother recorded.

Biological grandparents of father (1)

Parents Ramnulf I … de Poitou Duke of Aquitaine + Bilichild de Maine (Marriage) of Ramnulf II … Comte de Poitou

1 Bilichild de Maine –

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Guillaume has no grandparents recorded.

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Guillaume has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Guillaume has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Guillaume has one mother recorded.

Biological parents (1)

Marriage Ebalus Mancer … Comte de Poitou, Duc d'Aquitaine + Aremburgis …

1 Aremburgis … –

Parents-in-law

generation +1 no blood relationship

Guillaume has one mother-in-law recorded.

Marriage with Gerloc of Normandy (1)

Marriage Rollo … duke of Normandy + Poppa …

1 Poppa … –

Co-parents-in-law

same generation no blood relationship

Guillaume has one co-mother-in-law recorded.

Parents-in-law of biological children (1)

Marriage Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou + Emma de Blois

1 Liutgarde de Vermandois 915–979

Partners

same generation no blood relationship

Guillaume has one female partner recorded.

Partner of Guillaume (1)

1 Gerloc of Normandy –962

Partner chains

same generation no blood relationship

Guillaume has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Guillaume has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Guillaume has no siblings-in-law recorded.

Co-siblings-in-law

same generation no blood relationship

Guillaume has one co-sister-in-law recorded.

Partners of siblings-in-law (1)

Partners of William I Longsword … Duke of Normandy

1 Sprota … –

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Guillaume has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Guillaume has no nephews or nieces recorded.

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Guillaume has no children recorded.

Children-in-law

generation -1 no blood relationship

Guillaume has one daughter-in-law recorded.

Partners of biological children (1)

Son Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou

1 Emma de Blois 950–1003

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Guillaume has no grandchildren recorded.

Grandchildren-in-law

generation -2 no blood relationship

Guillaume has one granddaughter-in-law recorded.

Partners of biological grandchildren (1)

Marriage Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou + Gerloc of Normandy

1 Agnes de Bourgogne 995–1068

Summary for the shown extended family

The extended family of Guillaume has 9 members (including Guillaume). (additional members of the partner chains are not counted)

Extra information

Last change

December 6, 2015 – 03:09:02

Author of last change: ghvandoorn

Family navigator

Family with parents
father Parents Ramnulf II … Comte de Poitou	Ebalus Mancer … Comte de Poitou, Duc d'Aquitaine 870–934
mother	Aremburgis … –
himself	Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou 900–963

Family with Gerloc of Normandy
himself	Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou 900–963
wife Parents Rollo … duke of Normandy Poppa …	Gerloc of Normandy –962
son Family Emma de Blois Guillaume III-V le Grand … Duc d'Aquitaine 996-1030, Comte de Poitou	Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou 935–993

Descendants

Guillaume I-III … Duc d'Aquitaine 935-963, Comte de Poitou(900–963)
- Gerloc of Normandy935
  - Guillaume II-IV Fier à bras … Duc d'Aquitaine, Comte de Poitou(935–993)