There really is a St. Cloud - a grandson of King Clovis. He was one of four brothers whose uncle was determined to eliminate them and clear his own way to the throne and the only one of his brothers who escaped assassination.
St. Cloud took refuge with a French archbishop and became a hermit, at first living in exile, but later returning to Paris where he was ordained a priest and continued to serve the people as a simple cleric.
He earned a reputation for holiness and prayer, devotion to the Eucharist and charity toward all. He is the patron saint of the Diocese of St. Cloud Minnesota.