He was crowned king at 12, at his fathers death. His mother, Blanche of Castile, ruled during his minority. When he was 19, (and his bride 12) he was married to Marguerite of Provence. It was a loving marriage, though was not without challenge. They had 10 children.
Louis took the cross for a Crusade when he was 30. His army took Damietta on the Nile but not long after, weakened by dysentery and without support, they were surrounded and captured. Louis obtained the release of the army by giving up the city of Damietta in addition to paying a ransom. He stayed in Syria four years.
He...