Pope John XXIII, regarded as one of the most popular popes, was the head of the Catholic Church from 1958 to 1963. This biography of Pope John XXIII provides detailed information about his childhood, life, achievements, works & timeline.
John XXIII (Baldassare Cossa) was the antipope during the period of Western Schism and a leader of the ‘Council of Pisa’ in 1408.
