Blanche herself died either in 1269 or 1270, four years after her marriage. Her husband would go on to become the Count of Flanders long after her death. 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. 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.
