In the 11th century (1000s), Assisi became a free town. But there was constant fighting between two groups called the Ghibellines and the Guelphs. Assisi mainly supported the Ghibellines, but the nearest big town, Perugia, supported the Guelphs. During the battle of Ponte San Giovanni (St. John's Bridge), the Guelphs from Perugia managed to capture a young man from Assisi. His name was Francesco di Bernardone. It was partly because of his experiences when he was captured that young Francesco decided that he would change from being a soldier. When he returned to his father's house, he put away all his riches and became a poor, wandering preacher, telling people to turn to God and live in peace with each other. He worked with the poor and the outcast people. They had no church except a ruin. St. Francis and his friends rebuilt the tiny ruined church for the shepherds and other poor people to worship in. It is called the "Porziuncola". Francesco (Francis) founded the Order of Franciscans. He was "canonized" (made a saint) in 1228 and is known as St. Francis. He is one of the most popular saints.