Margaret (French: Marguerite) was born during the spring of 1221, in Forcalquier. She was the eldest daughter of Ramon Berenguer IV, Count of Provence, and Beatrice of Savoy. She had three younger sisters, who would all become queens like her: Eleanor (Queen of England), Sanchia (Queen of Germany) and Beatrice (Queen of Sicily). Margaret has a especially close relationship with Eleanor, and they remained friends until they grew old. In 1233, Blanche of Castile sent one of her knights to Provence to meet Margaret, whose grace and beauty was famous. Margaret and her father entertained the knight well, and soon Blanche and Ramon Berenguer were negotiating a marriage contract between Margaret and Louis IX of France, Blanche's son. Margaret was escorted to Lyon by her parents, where the marriage treaty was signed. From there, she was escorted to her wedding ceremony, in Sens. On 27 May 1234, Margaret became the wife of Louis IX and Queen of France; she was just 13. The marriage...