| Year | Month | Day | Event |
|---|---|---|---|
| 230 | Jul | 21 | Pope Pontian Become Eighteenth Pope |
| 236 | Jan | 10 | Pope Fabian Becomes Twentieth Pope |
| 254 | May | 12 | Pope Stephen I Succeeds Lucius I |
| 590 | Sep | 03 | Consecration Pope Gregory I |
| 1105 | Nov | 18 | Maginulfo Elected Antipope |
| 1464 | Aug | 30 | Pope Paul II Succeeds Pius II |