St. Matthew, one of the twelve Apostles, is the author of the first Gospel. This has been the constant tradition of the Church and is confirmed by the Gospel itself. He was the son of Alpheus and was called to be an Apostle while sitting in the tax collectors place at Capernaum. Before his conversion he was a publican, i.e., a tax collector by profession. He is to be identified with the "Levi" of Mark and Luke.
Saint Ignatius of Loyola, also known as Íñigo Oñaz López de Loyola, was of noble birth and was reared in the household of a prominent courtier. In 1517 he left his life at court to enter the army. He would later found the Society of Jesus, known as the Jesuits.