Lampridio Vitturi, from Tragurium (1320 - death 1348)
fra Bartolomeo, from Vallismontana (1349 - death 1361?), previously Bishop of Kotor (Montenegro) (1348.07.14 – 1349.01.30)
Niccolò de' Casotti (Nikola Kažotić), from Tragurium (1361 - death 1370)
Valentinus (1370-?)
Crisogono (Krševan) de Dominis (14 July 1372 - 1403), from and previously Bishop of the Roman Catholic Diocese of Arba (Rab) (1363.06.07 – 1372.07.14); later Metropolitan Archbishop of Kalocsa (Hungary, plausibly not possessed as he died the same year)
Simone (Šimun) de Dominis, from Rab (1403 - death 1420?)
Marino de Cernotis (Carnota), from Rab (1423 - 1424), previously Bishop of Arba (1414.02.11 – 1423.05.07); later bishop of Trieste (Italy, 1424.12.11 – death 1441)
fra Tommaso Tomasini from Tuscia, Dominicans (O.P.) (1424 - 1435), previously Bishop of Cittanova (d'Istria) (Croatia, 1409 – 1420.03.04), Bishop of Pula (Croatia) (1420.03.04 – 1423.09.24), Bishop of Roman Catholic Diocese of Urbino (Italy) (1423.09.24 – 1424.12.11); later bishop of Recanati (Italy, 1435.10.24 – 1440.10.15), then Bishop of Feltre (Italy) (1440.10.15 – 1446.03.24)
Angelo Cavazza from Venice (1440 - death 1452), previously Bishop of Arba (1428.02.23 – 1433.01.07), Bishop of Poreč–Novigrad (Croatia) (1433.01.07 – 1440.04.11)
Leonello Chiericato, from Vicenza (Italy, 1484 - 1488), previously Bishop of Arba (1472.01.08 – 1484.01.19); later bishop of Concordia (1488.10.22 – death 1506.08.19)
Didak Manola (Diego Manola), from Split (1755 - 1765)
Ivan Antun Miočević (Johann Anton Miocevich), from Šibenik (Croatia, 1766 - 1786)
Lelio Cippico, from Trogir (accepted 1783 the transfer from the see of Šibenik when Miočević was to be transferred to the see of Split – 1784 transferred to the see of Split)[10]
It has had the following incumbents, all of the lowest (episcopal) rank :
Frans Joseph Bruls Canisius, Montfort Missionaries (S.M.M.) (26 April 1969 - 7 January 1976) as emeritate; previously Titular Bishop of Parætonium (1939.01.07 – 1964.02.11) & Coadjutor Apostolic Vicar of Los Llanos de San Martín (Colombia) (1939.01.07 – 1939.06.27) succeeding as Vicar Apostolic of Los Llanos de San Martín (1939.06.27 – 1949.06.09), last Apostolic Vicar of Villavicencio (Colombia) (1949.06.09 – 1964.02.11), promoted first Bishop of Villavicencio (1964.02.11 – 1969.04.26)