After the writings of Pope Martin IV in 1284 and Pope Honorius IV in 1286 to the "Archbishop of Ragusa", the Archbishop installed a certain Petar as Bishop of Ston and Korčula – "stacnensis ac Crozolensis". In 1291, Ivan Kručić was in Korčula's city as the Bishop of Korčula. Kručić contested his overlord, the Archbishop of Hvar, and wanted to unite Ston with his church domain. In 1300, Pope Boniface VIII finally founded the Korčula Bishopric under the Archbishopric of Ragusa. In 1333, as the Republic of Ragusa purchased Ston with Pelješac from the Serbian Empire, the suzerainty of Ston's Roman Catholic Church with the peninsula was given to the Bishopric of Korčula.