Joseph was born at Leonissa in the Kingdom of Naples. As a boy and as a student in early adulthood, Joseph drew attention for his energy and virtue. Offered a nobleman’s daughter in marriage, Joseph refused and joined the Capuchins in his hometown in 1573 instead. Avoiding the safe compromises by which people sometimes undercut the gospel, Joseph denied himself hearty meals and comfortable quarters as he prepared for ordination and a life of preaching.
In 1587, he went to Constantinople to take care of the Christian galley slaves working under Turkish masters. Imprisoned for this work, he was warned not to resume it on his release. He did and was again imprisoned and then condemned to death. Miraculously freed, he returned to Italy where he preached to the poor and reconciled feuding families as well as warring cities which had been at odds for years. He was canonized in 1745.