This, the twentieth ecumenical council of the Catholic Church, held three centuries after the Council of Trent, opened on 8 December 1869 and adjourned on 20 October 1870.
Ovaj dvadeseti ekumenski sabor Katoličke crkve, održan tri stoljeća nakon Tridentskog sabora, otvoren je 8. prosinca 1869. godine, a prekinut je 20. listopada 1870.