<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Second Vatican Council, fully the Second Ecumenical Council of the Vatican (Latin: Concilium Oecumenicum Vaticanum Secundum) and informally known as Vatican II, addressed relations between the Catholic Church and the modern world . It was the twenty - first and most recent ecumenical council of the Catholic Church and the second to be held at St. Peter's Basilica in the Vatican . The council, through the Holy See, formally opened under the pontificate of Pope John XXIII on 11 October 1962 and closed under Pope Paul VI on the Feast of the Immaculate Conception on 8 December 1965 . </P> <P> Several changes resulted from the council, including the renewal of consecrated life with a revised charism, ecumenical efforts towards dialogue with other religions, and the universal call to holiness, which according to Pope Paul VI was "the most characteristic and ultimate purpose of the teachings of the Council". </P>

Where did the second vatican council take place