proceedings of the 925 Council of Split calls Tomislav king "in the province of the Croats and in the Dalmatian regions" (in prouintia Croatorum et Dalmatiarum finibus Tamisclao rege). In the council's 12th canon, the ruler of the Croats is called "king" (rex et proceres Chroatorum); in a letter from Pope John X, Tomislav is called "King of the Croats" (Tamisclao, regi Crouatorum). Although no inscriptions of Tomislav exist to confirm the title, later inscriptions and charters confirm that his 10th-century successors called themselves "kings". Older historiography assumed that Tomislav was crowned in a field at Duvno (near Tomislavgrad), although there are no contemporary records of this event. This conclusion was drawn from the Chronicle of the Priest of Duklja, which describes a coronation of a King Svatopluk (Budimir in a later version of the chronicle) and a council held in a field at Dalma. Some 19th-century historians theorized that Tomislav and Svatopluk were the same person, or the author was mistaken about the king's name. Other theories suggest that the pope (or a representative) had Tomislav crowned before the 925 Council of Split, or Tomislav crowned himself. Councils of Split In 925, Pope John X convened a church council in Split to decide which bishops in the former Roman province of Dalmatia would have ecclesiastical jurisdiction. The jurisdiction was contested by Gregory (the Croatian bishop of Nin) and John, the archbishop of Split. Before the council, Bishop Gregory was responsible for a significantly larger territory than Archbishop John; however, his reputation and finances could not compete with that of the Archbishopric of Split. Split also claimed continuity with the ancient Archbishopric of Salona and, due to this tradition, the council confirmed Split as the archepiscopal see. The territory from the river Raša in Istria to Kotor, including Nin, was subject to Split. The use of the Croatian language and Glagolitic script in ecclesiastical services was also discussed. The Pope sought to condemn it but the council allowed its use for local priests and monks, who were prevented from advancing to higher positions. Thomas the Archdeacon did not mention the council in his Historia Salonitana. He wrote that Split had had ecclesiastical rights over former Roman Dalmatia since the 7th century (contradicting the council proceedings which bestowed the rights to Split in 925), apparently to maintain his narrative's consistency. The council was attended by Tomislav (referred to as a king