San Pietro in Vincoli
The 1061 papal election was held on 30 September 1061 in San Pietro in Vincoli ("Saint Peter in Chains") in Rome, following the death of Pope Nicholas II. In accordance with Nicholas II's bull, "In Nomine Domini", the cardinal bishops were the sole electors of the pope for the first time in the history of the Roman Catholic Church. Bishop Anselmo de Baggio of Lucca, a non-cardinal and one of the founders of the Pataria, was elected Pope Alexander II and crowned at nightfall on 1 October 1061 in San Pietro in Vincoli Basilica because opposition to the election made a coronation in St. Peter's Basilica impossible.