Pope Paul II (; ; 23 February 1417 – 26 July 1471), born Pietro Barbo, was head of the Catholic Church and ruler of the Papal States from 30 August 1464 to his death in July 1471. When his maternal uncle Eugene IV became pope, Barbo switched from training to be a merchant to religious studies. His rise in the Church was relatively rapid. Elected pope in 1464, Paul amassed a great collection of art and antiquities. Early life Pietro Barbo was born in Venice, the son of Niccolo and Polixena Condulmer Barbo. His mother was the sister of Pope Eugenius IV (1431–1447). Through his father he was a member of the noble Barbo family. His adoption of the spiritual career, after having been trained as a merchant, was prompted by his uncle's election as pope. His consequent promotion was rapid. He became Archdeacon of Bologna, and Bishop of Cervia and of Vicenza, and in 1440 became a cardinal-deacon. Barbo gained popularity through his generosity. He might have boasted that if elected pope he would buy each cardinal a villa to escape the summer heat. After having been lay abbot of Santa Maria in Sylvis since 1441, in 1445 he succeeded Giuliano Cesarini as archpriest of the Vatican Basilica. Barbo was very influential under Eugene IV, Nicholas V, and Calixtus III, but less so under Pius II. Barbo had a marked propensity to enjoy dressing up in sumptuous ecclesiastical finery. Election Barbo was elected to succeed Pope Pius II by the accessus in the first ballot of the papal conclave of 30 August 1464 with a majority of fourteen of the nineteen cardinals present. He owed his election in part to the dissatisfaction of some of the cardinals with the policy of his predecessor. Upon taking office, Paul II was to convene an ecumenical council within three years. But these terms of subscription were modified by Paul II at his own discretion, and this action lost him the confidence of the College of Cardinals. The justification for setting aside the capitulations, seen to be under way by the Duke of Milan's ambassador as early as 21 September, lay in connecting any abridgement of the Pope's absolute monarchy in the Papal States with a consequent abridgement of his sole authority in spiritual matters. Almost from his coronation, Paul withdrew and became inaccessible: audiences were only granted at night and even good