For 10 points, name this French duchy containing the castle of Poitiers, which was inherited by the wife of Henry II, Eleanor.
A chronicle of this duchy was written by the author of a forged Life of Martial, the monk Ademar. A group of bishops in this region agreed to excommunicate nobles who blatantly killed defenseless peasants, beginning the medieval Peace of God movement. Andreas Capellanus described a "Court of Love" adjudicated by women at a castle in this duchy. A Duke of this region, William I, gained the epithet "the Pious" by founding the (*) Abbey of Cluny. Odo the Great was a Duke of this region who fatefully asked for Charles Martel's assistance against the encroaching Arabs. A city in this region was famed for its enamels until being brutally sacked by Edward the Black Prince, who became the prince of this region by the Treaty of Bretigny. For 10 points, name this French duchy containing the castle of Poitiers, which was inherited by the wife of Henry II, Eleanor.
A chronicle of this duchy was written by the author of a forged Life of Martial, the monk Ademar.
Aquitaine