Neuberger Teilungsvertrag. On September 25, 1379, the Dukes Albrecht III and Leopold III divided their possessions amongst themselves in a contract signed in the monastery of Neuberg an der Muerz (Styria). Albrecht III was given Austria to the North and South of the River Enns (without Wiener Neustadt and the earldom of Pitten, but with Steyr and the Salzkammergut region) and Leopold III received Styria (including the Wiener Neustadt area), Carinthia, Carniola, the Windische March, Istria, Tirol and the west German possessions (Vorlande). Thus the two Habsburg lines ( Albertinian Line, LeopoldinianLine) were founded; these possessions were not reunited until 1493 under Emperor Maximilian I.
Literature#E. v. Schwind, A. Dopsch, Ausgew. Urkunden zur Verfassungsgeschichte der Deutsch-oesterreichischen Erblande im Mittelalter, 1895, new edition 1968; Schatz und Schicksal, exhibition catalogue, Mariazell-Neuberg an der Muerz 1996.