sentences:  The municipal area comprises the cadastral communities of Bärndorf, Gradenegg, Kreggab, Moosburg, Sankt Peter, Seigbichl ("Žihpolje"), Tigring ("Tigrče"), and Tuderschitz ("Tudrešiče").The area had at least been settled since Roman times, when it was part of the Noricum province; documented by preserved sections of Roman roads and tombstones, as well as by excavations of an ancient "villa rustica" near the village of Tigring.Moosburg proper is the site of the "Arnulfsfeste", a hill castle first mentioned in an 879 deed.