Beatrice and Charles returned to Provence in 1251, where some riots erupted at Arles and Avignon, instigated by Beatrice's mother, who felt Charles had failed to respect her claims in Provence. By July 1252 Charles had managed to defeat the revolt and was in the process of exercising his power as Count of Provence. However, in November of the same year, Blanche of Castile, regent of France while her son Louis IX was on crusade, died. Charles and Beatrice had to go to Paris, where Charles became co-regent of France with his brother, Alphonse. The Pope offered Charles the Kingdom of Sicily in 1252, but Charles had to turn the offer down, as he was preoccupied with other affairs and he also did not have sufficient funds.