Hvem giftet seg med William IX, Duke of Aquitaine?

William IX (Occitan: Guilhèm de Peitieus or Guilhem de Poitou, French: Guillaume de Poitiers; called the Troubadour; 22 October 1071 – 10 February 1126) was the Duke of Aquitaine and Gascony and Count of Poitou (as William VII) between 1086 and his death. He was also one of the leaders of the Crusade of 1101.

Though his political and military achievements have a certain historical importance, he is best known as the earliest troubadour—a vernacular lyric poet in the Occitan language—by whom some work survives.

Ermengarde of Anjou (c. 1068 – 1 June 1146), also known as Ermengarde of Brittany, was a member of the comital House of Anjou and by her two marriages was successively Duchess of Aquitaine and Brittany. She was also a patron of Fontevraud Abbey. Ermengarde was the regent of Brittany during the absence of her spouse, Duke Alan IV of Brittany, from 1096 until 1101.

Filippa Maude av Toulouse (ca. 1073 – 28. november 1118), også kjent som Filippa de Toulouse eller Filippa de Rouergue, var hertuginne av Aquitaine, og grevinne av Toulouse. Hun er også betraktet av en del historikere som en dronninggemal av Aragón og Navarra, men det er basert på et påstått ekteskap til kong Sancho Ramirez av Aragon som nå betraktes som mistenkelig eller tvilsomt.