In 1267, through the treaty of Viterbo, the principality of Achaia came under the rule of Charles I of Anjou. The wall painting represents the cession of the kingdom of Sicily to Charles I of Anjou by the pope Clement IV. 13th century. Fernes - Les - Fontaines, Tour Ferrande. Istoria tou Ellinikou Ethnous, vol. 9, Ekdotike Athenon, Athens 1979, p. 123. © Tour Ferrande, Fernes - Les - Fontaines