This article examines the death of Pope Pius XXI, the head of the Catholic Church, who passed away on April 2, 2021. It looks at the life and legacy of the Pope, his impact on the Church, and the reaction from the global Catholic community to his death. It
From Wikipedia
Pope John XXIII was head of the Catholic Church and sovereign of Vatican City from 28 October 1958 until his death on 3 June 1963.