Albert III of Austria (9 September 1349 – 29 August 1395), known as Albert with the Braid (Pigtail) (), a member of the House of Habsburg, was Duke of Austria from 1365 until his death. Biography Albert III was born in the ducal residence of Vienna, the third son of the Habsburg duke Albert II of Austria and his wife Joanna of Pfirt. Even though his father had determined a house law, whereby the four sons were obliged to rule jointly and equally, the eldest brother Rudolf IV assumed the reins of government after his father's death in 1358. He reaffirmed his supremacy issuing the Privilegium Maius. However, as his marriage remained childless he again had to share his power with his younger brothers. In 1365 Rudolf IV, Albert III, and Leopold III together signed the foundation certificate of the Vienna University (Alma Mater Rudolphina Vindobonensis); Rudolf died a few months later at the age of 25. Divided rule Albert, then the eldest surviving brother (the second-born son Frederick III had already died in 1362), inherited the rule and shared it with his younger brother Leopold III. Both were formally enfeoffed with the Duchy of Austria, Duchy of Styria, Duchy of Carinthia, and Duchy of Carniola by Emperor Charles IV. In 1369 the Habsburg dukes succeeded the late Meinhard III, Count of Gorizia-Tyrol in the County of Tyrol, when after a drawn-out conflict the Wittelsbach Duke Stephen II of Bavaria finally renounced his rights. In 1368 the Habsburg brothers purchased the Swabian city of Freiburg. But their attempt to gain control over the Adriatic port of Trieste failed in an armed conflict with the Republic of Venice in 1369/70. Trieste was not won until 1382, when the citizens sought protection from Venice by subjecting themselves to Austrian rule. In 1374 the Austrian dukes inherited large territories in the Windic March and Istria from the late Albert III, Count of Gorizia, which they attached to the Duchy of Carniola. The next year they acquired the Swabian lordship of Feldkirch from the Counts of Montfort, the nucleus of the Habsburg possessions in later Vorarlberg. Tension developed between the brothers, and in 1379 Albert and Leopold, by the Treaty of Neuberg divided the extended Habsburg territories. Albert received Austria proper (Austria Inferior), while Leopold get Styria, Carinthia and Carniola (Austria Interior), Tyrol (Austria Superior) and the dynasty's original possessions in Swabia (Austria Anterior).