After the Habsburg hereditary lands had been divided by the 1379 Treaty of Neuberg, Tyrol was ruled by the descendants of Duke Leopold III of Austria. After a second division within the Leopoldinian line in 1406, Duke Frederick IV of the Empty Pockets ruled them. In 1420 he made Innsbruck the Tyrolean residence. In 1490 his son and heir Sigismund renounced Tyrol and Further Austria in favour of his cousin German king Maximilian I of Habsburg. By then Maximilian I had re-united all Habsburg lands under his rule. In 1500 he also acquired the remaining Gorizia ("Görz") territories around Lienz and the Puster Valley.