William VIII

Type Figure Region Aquitaine Time 1025–1086 Also known as William VIII of Poitou

William VIII (1025–1086) was Duke of Aquitaine and Count of Poitou, succeeding his brother as Duke of Aquitaine in 1058.

Timeline

1041–1050Poitiers · PoitouBetween 1041 and 1050 William was a member of the Poitou comital family, growing up at the Poitou court. During this period the Duchy of Aquitaine was held by his half-brother William VII (Odo); succession relations within the family were complex, and William VIII gradually accumulated political and military experience.
1052–1057Poitou · PoitouAfter his brother William VII died in 1052, William succeeded as Count of Poitou. He thereafter took part in military actions against Muslim frontier regions of Spain and became embroiled in the succession disputes of the Duchy of Aquitaine, paving the way for his accession to the duchy in 1058.
1058–1086Poitiers · AquitaineIn 1058 William succeeded his nephew as Duke of Aquitaine, ruling vast territories of southwestern France. During his reign he maintained Aquitaine's relative independence, repeatedly clashed with the King of France and his vassals, and at times supported the Spanish Reconquista. He died in 1086 and his lands passed to his son William IX.

William VIII, duke of Aquitaine https://www.britannica.com/biography/William-VIII-duke-of-Aquitaine
Ademar of Chabannes, Chronicon — Ademar of Chabannes https://en.wikipedia.org/wiki/Ademar_of_Chabannes