Otto der Fröhliche#
b. 1301, d. Feb. 17, 1339, Duke of Austria, youngest son of Albrecht I, brother of Friedrich I und Albrecht II. Ruled Austria from 1330 with Albrecht II, won with him Carinthia in 1335 and was made Duke there according to an ancient custom. Founded the monastery of Neuberg in Styria and St. George's Chapel of the Augustinian Church in Vienna. Founded the knight's society "Societas Templois" there in 1337 for the crusade against the Prussians and Lithuanians. His epithet (documented from 1460) refers to his love of lively court life (Philipp Frankfurter and Neidhart Fuchs).
Literature#B. Hamann, Die Habsburger, 41993.