The relationship between William and his legitimate son William was troubled by his father's liaison with Dangereuse.
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She was also mistress to her granddaughters' paternal grandfather William IX, Duke of Aquitaine.
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If this is the case, Dangereuse was grandmother to Bohemund III of Antioch, Maria of Antioch and Philippa of Antioch.
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William was excommunicated a second time for "abducting" the Viscountess Dangerose (Dangerosa), the wife of his vassal Aimery I de Rochefoucauld, Viscount of Châtellerault.