In May 1247, Charles and Beatrice were recorded as being in Melun, where Charles was knighted by his brother Louis. Beatrice accompanied Charles on the seventh crusade in 1248. Led by Louis IX, the crusaders made an extended procession through France. Before they left, Charles and Beatrice met with the Dowager Countess in Beaucaire to try to come to some terms of agreement concerning Provence. Whilst the more important matters were left until Charles and Beatrice returned, it was decided that Beatrice of Savoy would give up the rights to "the castle at Aix in exchange for a percentage of the county's revenue."