St. Ambrose

At Bologna, the holy martyrs Vitalis and Agricola. The former was first the servant of the latter, and afterwards his partner and colleague in martyrdom. He was subjected by the persecutors to all kinds of torments, so that there was no part of his body without wounds. After having suffered with constancy, he yielded up his soul to God in prayer. Agricola was put to death by being fastened to a cross with many nails. St. Ambrose relates that being present at their translation, he took the martyr's nails, his glorious blood, and the wood of his cross, and deposited them under the consecrated altars.