(c. 901-902) Audax (904-926) Brunengus (937–964) Rozone (967–989) Petrus (991–1004) Alricus (1008 – Dec 1036) Obertus (c. 1037) Petrus (1040–1043) Guglielmo (1044–1049?) Wibertinus (attested 1046) Guido (attested 1049) Girelmo (c. 1054–c. 1065) Ingo (c. 1066–c. 1080) Ottone (1080–after 1098) Landolfo (1103–1132) Ottone (1133–1142) Nazarius (attested 1143) Anselmus (1148–1172) Guilelmus (1173–1191) Nazarius (1192–1196) Bonifatius (1198–1206) Guidotto Jacobus Porta Umbertus (Obertus) Bonifatius de Cocconato (1243–1260) Conradus de Cocconato (1260–1282) Obertus (1282–1293)Sede vacante (1294–1295) Guido de Valperga (1295–1327) from 1300 to 1600 Arnaldus de Roseto (1327–1348) Baldratus Malabayla (1348–1355) Joannes Malabayla (1355–1376) François Morozzi (1376–1380 Died) Antonius de Viali (1380–1381) (Roman Obedience) Franciscus Galli (Avignon Obedience) Joannes, Patriarch of Antioch (Administrator) (Avignon Obedience) Albertus Guttuario d'Agliano (1409–1439) Bernardo Landriani (1439–1446) Filippo Baudo Roero (1447–1469) Scipio Damiano (1469–1473) Basinus Malabaila (1473–1475) Pietro Damiani (1475–1496) Raphael de Ceva (1496–1499) Antonio Trivulzio (1499–1508) Albertino Roero (Rovere) (1508) Antonio Trivulzio Scaramuzza Trivulzio (Administrator) (1519) Vasino Malabayla (1519–1525 Died) Fernando de Gerona, O.S.A. (1525–1528 Appointed, Bishop of Venosa) Ambrogio Talento (1528–1528 Died) Agostino Trivulzio (1528–1529 Resigned) Scipione Roero (1529–1536 Died) Agostino Trivulzio (1536–1548 Died) Bernardino della Croce, B. (1547–1548 Appointed, Bishop of Como) Gaspare Capris (1550–1569 Died) Domenico della Rovere (bishop), O.P. (1569–1587 Died) Francesco Panigarola, O.F.M. (1587–1594) Caesar Benzio (1594–1595 Died) from 1600 to 1900 Giovanni Stefano Ajazza (1596–1618 Died) Isidoro Pentorio, B. (1619–1622 Died) Ottavio Broglia (1624–1647 Died) Paolo Vincenzo Roveria, B. (1655–1665 Died) Marco Antonio Tomati (1666–1693 Died) Innocenzo Migliavacca (Milliavacca), O. Cist. (1693–1714) Sede vacante (1714–1727) Giovanni Todone (1727–1739) Sede vacante (1739–1741) Giuseppe Filippo Felissano (1741–1757) Giovanni Filippo Antonio San Martini (1757–1761) Paolo Maurizio Caissotti, C.O. (1762–1786) Pietro Arborio Gattinara (1788–1809) Sede vacante (1809–1818) Antonio Faà di Bruno (1818–1829) Sede vacante (1829–1832) Michele Amatore Lobetti (1832–1840) Filippo Artico (1840–1859) Sede vacante (1859–1867) Carlo Savio (1867–1881) Giuseppe Ronco (1881–1898 Died) since 1900 Giacinto Arcangeli (ov 1898–6 Feb 1909 Died) Luigi Spandre (1909–1932) Umberto Rossi (1932–1952 Died) Giacomo Cannonero (1952–1977 Died) Vito Nicola Cavanna (1977–1980 Died) Franco Sibilla (1980–1989 Resigned) Severino Poletto (1989–1999 Appointed, Archbishop of Turin) Francesco Guido Ravinale (2000–2018) Marco Prastaro (2018– ) Parishes A list of the 107 parishes of the diocese, arranged by Vicariate as they were in 1894, was printed by Getano Bosio in Storia della Chiesa d'Asti. The modern diocese, which currently covers an area of 1,451 km², is divided into 128 parishes. The majority are in the Province of Asti, while the rest are divided between the provinces of