by Anura Guruge, Mark Trauernicht and Leopold Fitzclarence
1/ 715: Start of Gregory II’s (#89) 15.75 year reign.
2/ 1296: Death of Celestine (god father of conclaves) V (#193), in prison (following one failed escape attempt), from an infection, 17 months after his carefully coordinated, canonically correct abdication, so that he could go back to being a monk — he being badly betrayed and deceived by his confidant, Boniface VIII (#194) who feared the threat of a schism if the very holy ex-pope was permitted to be out in public.
3/ 1611: Birth of Benedetto Odescalchi who 65 years later would be elected Innocent XI (#241).
4/ 1769: Election of Clement XIV (#250), the last pope, to date, to use the name Clement, his suppression of the Jesuit order in 1773 (reinstated in 1814 by Pius VII (#252)) possibly being the factor here.
5/ 1837: Gregory XVI (#255)’s ninth cardinal creating consistory at which he created but two cardinals (one in pectore) for a running total, to that point, of 35 (out of the total of 75 he would go on to create in 26 cardinal creating consistories).