to a woman thirty years his senior failed as did Geoffrey's plans to control Aquitaine through his young son-in-law. After the death of his first wife Adele, Geoffrey married secondly Adelaise de Châlon and for nearly a decade exerted control over the county of Châlons. Through the marriage of his son Fulk III to Elisabeth, the heiress of Vendôme, Geoffrey brought that county into the Angevin sphere of influence. At this time Geoffrey made Fulk his co-ruler, and died shortly thereafter while besieging the fortress of Marçon on 21 July 987. Family He married Adele of Meaux (934–982), daughter of Robert of Vermandois and Adelais de Vergy. Their children were: Ermengarde-Gerberga of Anjou (b. 956), married Conan I of Rennes. She married, secondly, William II of Angoulême. Fulk III of Anjou (970-1040), he succeeded his father as Count of Anjou. Geoffrey of Anjou (971-977), died young. He married, secondly, to Adelaide de Chalon and had: Maurice of Anjou, destined to become a Count on the Nevers-Loire march, he failed and then assisted his brother in Angers. References Sources See also Mabille, Emile. Introduction aux chroniques des comtes d'Anjou (Paris) 1871. Medieval Lands Project on Geoffrey I, Count of Anjou 10th-century births 987 deaths Year of birth uncertain House of Ingelger Counts of Anjou