In 1279, Peter became Master of the stewards and possibly held this dignity until his death in 1283 or 1284. Meanwhile, he served as Palatine for the fourth and final time in 1281. Due to his ownership in Szenic, he has been in close contact with the Bohemian noble Sternberg family from the other side of the Morava river. Peter established his domain on the left bank of the Danube. He guaranteed the liberties of burghers in Komárom (today: "Komárno, Slovakia"). It is possible that Peter had received the town around 1277 or 1278. He governed his estates from Komárom Fortress. He also purchased for 60 silver marks the land of Bosman in Southern-Nyitra from the Berencs kindred in 1281. Furthermore, Peter intended to gain lands and customs duties in Pozsony County, according to a charter following his death, he had taken away the letters of privilege of the nobles in Padány (today: "Padáň, Slovakia") by force.