An 1580 illustration of Pope Pius I, who was pontiff from AD140 to AD155. He was the tenth pope and it was he who decreed that Easter should always fall on a Sunday,

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Size: 3055px × 4000px
Photo credit: © CBW / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1, catholic, catholicism, century, christian, christianity, church, early, head, leader, leaders, pious, pius, pontiff, pontiffs, pope, popes, roman, saint, spiritual, st