 For his loyalty and military service, Lawrence I was granted large-scale landholdings in Sopron County.He was also called as Lawrence of Nyék or Lawrence of Sopron by contemporary documents after his residence.He first appears in sources in 1279, when donated the estate of Limpach to the Cistercian Klostermarienberg Abbey (Borsmonostor, today part of Mannersdorf an der Rabnitz, Austria) for his late father's spiritual salvation, who was buried in the monastery.