 The Peace and Truce of God were fostered and the ideal of courtly love invented.The House of Poitiers produced many Dukes of Aquitaine, who were officially titled Counts of Poitiers.This line became extinct in the male-line in 1137, and in the female-line in 1204 with the death of Eleanor of Aquitaine, who was by her first marriage Queen of France, and by her second marriage, Queen of England.