Peter III of Arborea
Peter III (c. 1314–1347), eldest son of Hugh II and Benedetta of the Serra-Bas house, became Judge of Arborea in 1335. Around 1326 Peter married Constance, daughter of Philip of Saluzzo, the first Aragonese governor of Sardinia.
His reign was uneventful and run by his chancellor Guido Cattaneo, Archbishop of Arborea. In 1336 his brother Marianus did homage to Peter IV of Aragon on his behalf and received the County of Goceano.
In 1343 Pope Clement VI allowed Peter to found a convent of Poor Clares at Oristano. He died in 1347 with Constance childless, and Marianus succeeded him.