Pope Gregory X was head of the Catholic Church and ruler of the Papal States from 1 September 1271 to his death and was a member of the Third Order of St. Francis. He was elected at the conclusion of a papal election that ran from 1268 to 1271, the longest papal election in the history of the Catholic Church.

January 10

1210

10 January 1276 (aged 65–66)

Beatified

1

Q161740

10