Ernest, Duke of Austria

Ernest I
Duke of Austria
Portrait by Anton Boys, c. 1580
Duke of Styria, Carinthia and Carniola
Reign	15 July 1406 – 10 June 1424
Predecessor	William
Successor	Frederick V and Albert VI
Born	1377 Bruck an der Mur, Duchy of Styria
Died	(1424-06-10)10 June 1424 Bruck an der Mur, Duchy of Styria
Spouse	Margaret of Pomerania Cymburgis of Masovia
Issue	Frederick III, Holy Roman Emperor Margaret of Austria Albert VI, Archduke of Austria Alexander of Austria Rudolf of Austria Catherine of Austria Leopold of Austria Anna of Austria Ernest of Austria
House	Habsburg
Father	Leopold III, Duke of Austria
Mother	Viridis Visconti

Ernest the Iron (German: Ernst der Eiserne; 1377 – 10 June 1424), a member of the House of Habsburg, ruled over the Inner Austrian duchies of Styria, Carinthia and Carniola from 1406 until his death. He was head of the Habsburg Leopoldian line from 1411.