Louis_I,_Count_of_Montpensier
Louis de Bourbon (1405 – May 1486) was the third son of John I, Duke of Bourbon and Marie, Duchess of Auvergne.[1] He was Count of Montpensier, Clermont-en-Auvergne and Sancerre and Dauphin of Auvergne and was a younger brother of Charles I of Bourbon. He founded the Bourbon-Montpensier branch of the House of Bourbon, which would eventually take over the Duchy in 1505.