This is a painting of St. John of Capistrano, whom the famous mission in California is named for. The painting was commissioned by Blessed Junipero Serra for the mission church. St. John was a Fransican friar who converted many Jews, preached against the heretical Hussites, and helped reform the Conventual Franciscans. But among his greatest acts was when he personally led an army against Muslim invaders in Eastern Europe near Belgrade in 1456, using a force only one-tenth the size of the Muslim army. The Christian forces defeated the Muslims on the feast day of St. Mary Magdalen.
The painting is the featured work of art in the October issue of Magnificat magazine.