Palatinate-Neuburg () was a territory of the Holy Roman Empire, founded in 1505 by a branch of the House of Wittelsbach. Its capital was Neuburg an der Donau. Its area was about 2,750 km², with a population of some 100,000. History The Duchy of Palatinate-Neuburg was created in 1505 as the result of the Landshut War of Succession and existed until 1799 or 1808. After the so-called Kölner Spruch (Verdict of Cologne) the duchy was created from the territories north of the Danube for Otto Henry and Philipp, the sons of Ruprecht of the Palatinate. While they were minors, their grandfather Philip, Elector Palatine, ruled the duchy until his death in 1508, followed by Elector Frederick II. In 1541, Elector Otto Henry converted to Lutheranism and his palace chapel at Neuburg Castle was the first newly built Protestant church of all, consecrated on 25 April 1543 by the reformed theologian Andreas Osiander. In 1557, Otto Henry became the Elector and ceded his duchy (the so-called Young Palatinate) to Wolfgang, Count Palatine of Zweibrücken. The eldest son of Wolfgang, Philipp Louis, founded in 1569 the elder line of Palatine Zweibrücken-Neuburg, from which the Palatine Sulzbach lineage was separated in 1614. Palatinate-Neuburg joined the Protestant Union in 1608. In 1800, the duchy was invaded by France and on June 26, 1800, the Habsburg, Württemberg and Bavarian armies fought a battle there. After fighting for most of a day, the Coalition armies withdrew. Neuburg was occupied by the French, and General Ney established his headquarters in the castle there. The Duchy of Palatinate-Neuburg was abolished in 1808. In the partition of Bavaria in 1837, Palatinate-Neuburg was joined with Swabia but became a part of Upper Bavaria in the 1970s. Dukes of Palatinate-Neuburg Two brothers, first under regency of Frederick II, Elector Palatine Otto Henry, 1505–57 (Elector Palatine from 1556 until death) Philipp, 1505–41 House of Palatinate-Zweibrücken-Neuburg Wolfgang, 1557–69 Philipp Ludwig, 1569–1614 (also Duke of Jülich and Berg in 1614) Wolfgang Wilhelm, 1614–53 (also Duke of Jülich and Berg from 1614) Philip William, 1653–90 (also Duke of Jülich and Berg from 1653 and Elector Palatine from 1685) Johann Wilhelm, 1690–1716 (also Duke of Jülich and Berg from 1679 and Elector Palatine from 1690) Charles Philip, 1716–42 (also Duke of Jülich and Berg and Elector Palatine from 1716) With the death of Elector Charles Philip in 1742 all his territories including the state of Palatinate-Neuburg