Second Vatican Council
The Second Ecumenical Council of the Vatican, commonly known as the or , addressed relations between the Catholic Church and the modern world. The council, through the Holy See, was formally opened under the pontificate of Pope John XXIII on 11 October 1962 and was closed under Pope Paul VI on the Solemnity of the Immaculate Conception on 8 December 1965.
Pope Lucius II
Pope Lucius II (; died 15 February 1145), born Gherardo Caccianemici dal Orso, was Pope from 9 March 1144 to his death in 1145. His pontificate was notable for the unrest in Rome associated with the Commune of Rome and its attempts to wrest control of the city from the papacy.