Francis III of Brittany

Francis III was Dauphin of France and, after 1524, Duke of Brittany. Francis and his brother, Henry, were exchanged as hostages for their father, Francis I, who had been captured at the Battle of Pavia. They would be hostages for three years. Made Duke of Brittany in 1532, this precipitated Brittany's integration with the Kingdom of France. Francis died 10 August 1536, possibly from tuberculosis.