Together with his fortress, the Styraburg (Schloss Lemberg), it served as a focal point of Ottokar as ruler of the Traungau, and was endowed with significant possessions in the Traisen and Gölsen valleys, in Lower Austria, probably from the dowry of Ottokar's wife Elisabeth, daughter of the Babenberger Leopold II of Austria.
To improve the connection to that territory, he improved the road across the Semmering, and he also erected a hospital in Spital am Semmering in 1160 and completed the colonization of the area around the Traisen and Gölsen rivers.