No. 10 of 267
St. Pius I
Pope 140 to 155.
“According to the earliest list of the popes, given by Irenaeus (Against Heresies II.31; cf. Eusebius, Church History V.6), Pius was the ninth successor of St. Peter.”
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How we know · 1 source for this page
- Catholic Encyclopedia (1913), “Pope St. Pius I”. New Advent edition. newadvent.org
Dates follow the Catholic Encyclopedia’s list of popes; for the earliest popes they are traditional. Photo credits.