Francis I of France reigned from August 30, 1515 until his death.
Francis I ( Franz Stefan , François Étienne 8 December 1708 -- 18 August 1765 ) was Holy Roman Emperor and Grand Duke of Tuscany , though his wife effectively executed the real powers of those positions . Francis I ( François Ier ) ( 12 September 1494 -- 31 March 1547 ) was the first King of France from the Angoulême branch of the House of Valois , reigning from 1515 until his death .