In the Treaty of Neuberg, concluded between the Habsburg Dukes Albert III and Leopold III on September 9, 1379 in Neuberg an der Mürz

Neuberg an der Mürz

Neuberg an der Mürz is a municipality in the district of Mürzzuschlag in Styria, Austria....

, the Habsburg lands were divided between the two brothers. While Albert retained the Archduchy of Austria

Archduchy of Austria

The Archduchy of Austria , one of the most important states within the Holy Roman Empire, was the nucleus of the Habsburg Monarchy and the predecessor of the Austrian Empire...

, Leopold became the exclusive ruler of the Duchies of Styria

Duchy of Styria

The history of Styria concerns the region roughly corresponding to the modern Austrian state of Styria and the Slovene region of Styria from its settlement by Germans and Slavs in the Dark Ages until the present...

 (including the town of Wiener Neustadt

Wiener Neustadt

-Main sights:* The Late-Romanesque Dom, consecrated in 1279 and cathedral from 1469 to 1785. The choir and transept, in Gothic style, are from the 14th century. In the late 15th century 12 statues of the Apostles were added in the apse, while the bust of Cardinal Melchior Klesl is attributed to...

), Carinthia

Duchy of Carinthia

The Duchy of Carinthia was a duchy located in southern Austria and parts of northern Slovenia. It was separated from the Duchy of Bavaria in 976, then the first newly created Imperial State beside the original German stem duchies....

, Carniola

Duchy of Carniola

The Duchy of Carniola was an administrative unit of the Holy Roman Empire and the Habsburg Monarchy from 1364 to 1918. Its capital was Ljubljana...

, the Windic march

Windic march

The Windic march or marca Vindica was a province of the Holy Roman Empire in the Middle Ages, corresponding more or less to modern Lower Carniola in Slovenia. In Medieval German language, the term "Windisch" was a common name for some Slavic peoples The Windic march or marca Vindica was a...

, the County of Gorizia

County of Gorizia

The County of Görz was a county based around the town of Gorizia in the present-day Friuli-Venezia Giulia region of north-eastern Italy.Count Meinhard, descendant of the Bavarian Meinhardiner noble family with possessions around Lienz in Tyrol, is mentioned as early as 1107...

 and the Habsburgs' possessions in Friuli

Friuli

Friuli is an area of northeastern Italy with its own particular cultural and historical identity. It comprises the major part of the autonomous region Friuli-Venezia Giulia, i.e. the province of Udine, Pordenone, Gorizia, excluding Trieste...

, Tyrol

County of Tyrol

The County of Tyrol, Princely County from 1504, was a State of the Holy Roman Empire, from 1814 a province of the Austrian Empire and from 1867 a Cisleithanian crown land of Austria-Hungary...

 and Further Austria

Further Austria

Further Austria or Anterior Austria was the collective name for the old possessions of the House of Habsburg in the former Swabian stem duchy of south-western Germany, including territories in the Alsace region west of the Rhine and in Vorarlberg, after the focus of the Habsburgs had moved to the...

. With the treaty began a split between the Albertinian

Albertinian Line

The Albertinian line was a line of the Habsburg dynasty, begun by Albert III, who, after death of his brother Rudolf IV the Founder, split the Habsburg territories with his brother. Albert was the prince of the Duchy of Austria, while the southern territories were ruled by his brother - Leopold III...

and Leopoldinian lines of the Habsburg

Habsburg

The House of Habsburg , also found as Hapsburg, and also known as House of Austria is one of the most important royal houses of Europe and is best known for being an origin of all of the formally elected Holy Roman Emperors between 1438 and 1740, as well as rulers of the Austrian Empire and...

 families and the Austrian lands. While the Albertinian line became extinct in 1457, the territories were finally reunified in 1490, when Sigismund

Sigismund, Archduke of Austria

Sigismund of Austria, Duke, then Archduke of Further Austria was a Habsburg archduke of Austria and ruler of Tirol from 1446 to 1490....

 handed over the rulership of Tyrol to Archduke Maximilian I

Maximilian I, Holy Roman Emperor

Maximilian I , the son of Frederick III, Holy Roman Emperor and Eleanor of Portugal, was King of the Romans from 1486 and Holy Roman Emperor from 1493 until his death, though he was never in fact crowned by the Pope, the journey to Rome always being too risky...

.