 Beside that, he also served as "ispán" of Sáros County in 1285.Ivan Kőszegi's continuous looting raids in Austria and Styria resulted a large-scale war ("Güssing Feud"; ) throughout in 1289, when Albert I, Duke of Austria launched a massive royal campaign with his 15,000-size army against the Kőszegis and their "familiares".The Austrians captured at least 30 fortresses and settlements along the western borders, including Aba Lawrence's three castles, Lánzsér, Nyék and Locsmánd (present-day Landsee, Neckenmarkt and Lutzmannsburg in Austria, respectively), because Lawrence and his "banderium" refused to join the Austrian army to defeat the Kőszegi family.