St. Ignatius: The Dragonborn?
I know, I know, people are already starting to get sick of this joke nowadays...
St. Ignatius was born into a wealthy family in Spain in 1491. In his early years he enjoyed women, gambling, and sometimes got into trouble. He entered the military, and in a battle with the French, he took a cannonball to the leg (probably not the knee as stated in this picture, but close enough). He ended up with a limp.
Later, he decided to make a major change in his life. He abandoned his worldly desires and became a priest, and went on to found the Society of Jesus, also known as the Jesuits.