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John of Lodi (1025–1106) was an Italian hermit and bishop.

John was born in Lodi Vecchio in 1025. In the 1060s he became a hermit at the Camaldolese monastery of Fonte Avellana. He became a disciple and the personal secretary of Peter Damian, who was the prior of Fonte Avellana. After Damian's death in 1072, John wrote a biography of Damian (1076-1082).^[1] John later became prior of Fonte Avellana (1082-1084, and again 1100–1101). In 1104 he became Bishop of Gubbio, and held this office until his death.

• St. John of Lodi
• San Giovanni da Lodi (in Italian)