Otto the Merry, Duke of Austria, becomes Duke of Carinthia.
Otto, the Merry (German: der Fröhliche; 23 July 1301 – 17 February 1339), a member of the House of Habsburg, was Duke of Austria and Styria from 1330, as well as Duke of Carinthia from 1335 until his death. He ruled jointly with his elder brother Duke Albert II.