“Every day by priests and monks should be recited, for the good of our soul and the souls of our successors, a hundred Kyrie-eleisons and a hundred Christe-eleisons, and that thrice each week the priests should offer the Holy Mass to Almighty God for the absolution of our soul and those of our successors.” Pope John XII, Grant of Privileges to Subiaco Abbey, 958 A.D. (Mann, Horace K. (1910). The Lives of the Popes in the Early Middle Ages, Vol. IV: The Popes in the Days of Feudal Anarchy, 891-999. pg. 246)