Mamertus (Paperback)

High Quality Content by WIKIPEDIA articles! Saint Mamertus (died c. 475) was the Archbishop of Vienne in Gaul and is a saint in the Roman Catholic Church. His primary contribution to ecclesiastical practice was the introduction of litanies prior to Ascension Day as an intercession against earthquakes and other disasters, leading to "Rogation Days." His feast day is the first of the Ice Saints.