The Diocese of Frascati (Lat.: Tusculana) is a suburbicarian see of the Holy Roman Church and a diocese of the Catholic Church in Italy, based at Frascati, near Rome. The bishop of Frascati is a Cardinal Bishop; from the Latin name of the area, the bishop has also been called Bishop of Tusculum. The bishopric in fact moved from Tusculum at the end of the twelfth century. Until 1962, the Cardinal-Bishop was concurrently the diocsesan bishop of the see in addition to any curial duties he posscessed.


To 1200

  • Pietro (803-?)
  • Egidio (or Gilles, or Lunisso) (964- circa 969)
  • Giovanni (969-?)
  • Bonizzo (1049- circa 1050)
  • Pietro (circa 1050-1059)
  • Gilberto (1059- circa 1062)
  • Pietro (1062- before 1065)
  • Giovanni (circa 1065-1088)
  • Giovanni, dei Conti di Marsi (1093- circa 1111)
  • Manfred (?) (1112?-1115?)
  • Divizzo (Divitius, Denys, Dionysius, Divizo, Denigo) (1115-1121)
  • Gilles of Paris (1121-1130, deposed; reinstated, 1138-1139)
  • Hugh de Saint-Victor, Regular canon of Saint Anthony] (1139-1140 o 1141)
  • Imar (or Icmar), Benedictine (1142-1164)
  • Ugo Pierleoni (1164-1167)
  • Odon de Soissons (1170-1171)[1]
  • Pietro da Pavia (1178 or 1179 — 1182 or 1189)




From 1800

From 1900

Titular Cardinal-Bishops

Bishops of Frascati


  1. He is not mentioned in the catalogs of the bishop of Frascati either on The Cardinals of the Holy Romanc Church or on theofficial website of the suburbicarian see of Frascati but according to Jaffé Philipp, Regesta pontificum Romanorum ab condita Ecclesia ad annum post Christum natum MCXCVIII, Berlin 1851, p. 677 Oddo episcopus Tusculanus subscribed the papal bulls between December 25, 1170 and April 9, 1171

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