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| YEAR | DATE | EVENT | HEAD OF STATE | PRIME MINISTER |
| 1870 | 20 september | Vatican State | 254° pope Pio IX | Giacomo Cardinal Antonelli |
| 1876 | 18 december | Giovanni Cardinal Simeoni | ||
| 1878 | 20 february | 255° pope Leone XIII | Alessandro Cardinal Franchi | |
| 1878 | 30 june | Lorenzo Cardinal Nina | ||
| 1880 | 16 december | Lodovico Cardinal Jacobini | ||
| 1887 | 28 february | Mariano Cardinal Rampolla, Marchese del Tindaro | ||
| 1903 | 4 august | 256° pope Pio X | Raffaele Cardinal del Val | |
| 1914 | 3 september | 257° pope Benedetto XV | Pietro Cardinal Gasparri | |
| 1922 | 6 february | 258° pope Pio XI | ||
| 1930 | 9 february | Eugenio Cardinal Pacelli | ||
| 1939 | 2 march | 259° pope Pio XII | Luigi Cardinal Maglione | |
| 1944 | 22 august | Domenico Cardinal Tardini | ||
| 1958 | 28 october | 260° pope John XXIII | ||
| 1963 | 21 june | 261° pope Paolo VI | Amleto Giovanni Cardinal Cicognani | |
| 1969 | 2 may | Jean-Marie Cardinal Villot | ||
| 1978 | 26 august | 262° pope John Paolo I | ||
| 1978 | 16 october | 263° pope John Paolo II | ||
| 1979 | 30 april | Agostino Cardinal Casaroli | ||
| 1990 | 1 december | Angelo Cardinal Sodano | ||
| 2005 | 19 april | 264° pope Benedetto XVI | ||
| 2006 | 15 september | Tarcisio Bertone | ||
| 2013 | 13 march | 265° pope Francesco I | ||
| 2013 | 15 october | Pietro Parolin | ||
| 2025 | 8 may | 266° pope Leone XIV |