He ruled the county of Anjou from to 942, first as Viscount then in 929 as Count. It is not known why there was a period of time between Ingelger's rule and his son Fulk's. In 899 he became Viscount of Tours and in 905, Count of Tours. About 900-918 he was Count of Nantes. He increased the territory of the county of Anjou. During his reign, he was permanently at war with the Normans and the Bretons. He lost Nantes to the Normans in 919. Normans and their Viking allies often invaded Brittany and Anjou. , Ingelger, Fulk's oldest son was killed defending Anjou against Norman attacks.