– 1269/1270), was the eldest surviving child born to Charles of Anjou and his first wife, Beatrice, the reigning Countess of Provence and Forcalquier.
[4] Blanche's siblings included Charles II, King of Naples; Beatrice, Latin Empress; Philip and Elizabeth, Queen of Hungary.
In 1266, her father was installed as King of Sicily by Pope Clement IV,[5] founding the Capetian House of Anjou.
He had Blanche buried in Flines, and her tomb clearly displayed the alliance between Flanders and Sicily: King Charles and Queen Beatrice are prominently featured on it.
[9] Robert would further demonstrate his alliance with Sicily, choosing Yolande of Burgundy, the sister of Charles of Anjou's second consort Margaret, as his second wife.