Arnulf's son, Baldwin III died in 962 leaving Arnold a crisis of succession. Baldwin's son Arnulf II 'the Young' was still a child and his succession was disputed. Arnulf offered the king, Lothair of France, Artois, Ponthieu, and Ostrevant in exchange for the king's protection of Arnulf II. His grandson inherited a weakened county of Flanders when he came of age. Arnold died on 27 March 964.