He fought vehemently for a reform of the corrupt customs of the clergy. After being elected bishop of Ostia and cardinal around the year 1057, he also learned show compassion towards others in their weaknesses, thus managing to resolve highly painful conflicts.
He resigned from the cardinalship after several years in order to regain his peace and freedom, but continued to undertake conciliatory missions when the need arose.
After returning from one of his countless missions in the service of peace, Peter Damian died in Faenza during the night between February 22 and 23, 1072. His mortal remains rest in Faenza's cathedral.
Ez 3:16-21; Lk 12:32-34