Geoffrey had influence in Aquitaine through his sister Adelaide-Blanche's first marriage to the powerful baron Stephen, Count of Gevaudan and Forez. After his death the lands were ruled by his widow Adelaide-Blanche. Their sons, Geoffrey's nephews, Pons and Bertrand succeeded as counts there. Geoffrey's niece, Adalmode, married Adelbert, Count of Marche and Périgord. In 975 Geoffrey had his brother Guy appointed as the Count and Bishop of Le Puy. In 982 Geoffrey married his now widowed sister Adelaide-Blanche to the fifteen-year-old Louis V of France. The two were crowned King and Queen of Aquitaine. But the two could not get along and the marriage failed. So did Geoffrey's plans to control Aquitaine through his young son-in-law. 