St. Mamertius
Author and Publisher - Catholic Online
Facts
Feastday: May 11
Archbishop of Vienne, France, from 461 until his death, the originator of the penitential practice ofrogation days. This practice is marked by processions and Psalms for the three days preceding the feast of the Ascension. Mamertius, also listed as Mamertus, was known for his learning.
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