St. Anthony Mary Zaccaria was the founder of the Clerks Regular of St. Paul, later called the Barnabites from the name of their principal church in Rome. He also founded a congregation of nuns which now no longer exists. He was a great admirer of St. Paul and was himself imbued with the teaching of the great Apostle, whom he gave to his followers as a model and a patron. He was a zealous and untiring preacher and completely wore himself out at this work; he died at the age of thirty-six on July 5, 1539.