On his accession, Fulk found himself facing a coalition of Odo I, count of Blois, and Conan I of Rennes. The latter having seized upon Nantes, of which the counts of Anjou held themselves to be suzerains, Fulk soon laid siege to it, routing Conan’s army at the battle of Conquereuil (27 June 992) and re-establishing his suzerainty over Nantes. Then turning his attention to the count of Blois, he proceeded to establish a fortress at Langeais, a few miles from Tours, from which, thanks to the intervention of the king Hugh Capet, Odo failed to oust him. On the death of Odo I, Fulk seized Tours (996), but King Robert the Pious turned against him and took the town again (997). In 1016 a fresh struggle arose between Fulk and Odo II, the new count of Blois. Odo II was utterly defeated at Pontlevoy (6 July 1016), and a few years later, while Odo was besieging Montboyau, Fulk surprised and took Saumur (1026). Satisfied with his accomplishments, Fulk died peacefully on 21 June 1040, just 970 years before his fifty-ninth birthday
