William II of Villehardouin
Prince of Achaea from 1246 to 1278 · France · On the map · Writers · Lived 1211 to 1278 · aged 67
William of Villehardouin was the fourth prince of Achaea in Frankish Greece, from 1246 to 1278. The younger son of Prince Geoffrey I, he held the Barony of Kalamata in fief during the reign of his elder brother Geoffrey II.
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Ruins of the fortress of Mistra. William built it to complete the conquest of southeastern Morea in 1249, but he had to cede it to the Byzantines in 1261.
Gold hyperpyron of Michael VIII Palaiologos
The popes' palace in Viterbo. The 1267 Treaty of Viterbo established Charles I of Anjou's suzerainty over Achaea and his claim to succeed William in the principality.
Coin of William struck at Glarentza (inscription +:G:PRINCEACh, +:CLARENTIA)About this person
William ruled Achaea as regent for his brother during Geoffrey's military campaigns against the Greeks of Nicaea, who were the principal enemies of his overlord, the Latin Emperor of Constantinople Baldwin II. William succeeded his childless brother in the summer of 1246. Conflicts between Nicaea and Epirus enabled him to complete the conquest of the Morea in about three years. He captured Monemvasia and built three new fortresses, forcing two previously autonomous tribes, the Tzakones and Melingoi, into submission. He participated in the unsuccessful Egyptian crusade of Louis IX of France, who rewarded him with the right to issue currency in the style of French royal coins.
