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Louis IX (German: Ludwig IX, Herzog von Bayern-Landshut, also known as Louis the Rich; 23 February 1417 – 18 January 1479) was Duke of Bavaria-Landshut from 1450. He was a son of Henry XVI the Rich and Margaret of Austria.[1] Louis was the founder of the University of Ingolstadt (now the Ludwig-Maximilians-Universität München or LMU Munich).
Louis succeeded his father in 1450. He was the second of the three famous rich dukes who reigned in Bavaria-Landshut in the 15th century. Their residence was Trausnitz Castle in Landshut, a fortification which attained enormous dimensions.
Louis invaded the imperial free cities of Dinkelsbühl and Donauwörth in 1458, and disputed with Frederick III, Holy Roman Emperor until peace was made in Prague in 1463. In 1462, Louis defeated his enemy Albert III, Margrave of Brandenburg, who tried to extend his influence in Franconia in the battle of Giengen. Louis expelled all Jews who rejected baptism from his duchy.[1]
Louis founded a university in Ingolstadt in 1472, which was moved to Landshut in 1800 and finally to Munich in 1826; in 1802, it was renamed Ludwig-Maximilians-Universität. In 1475 he organized the Landshut Wedding of his son George with the princess Hedwig Jagiellon, a daughter of King Casimir IV of Poland.
On 21 March 1452 Louis was married with Princess Amalia of Saxony, daughter of Frederick II, Elector of Saxony.[1] They had four children:
1475年、彼の息子ゲオルギオスとポーランドの王女ヘドヴィヒ・ヤギェウォの結婚式は、中世の祭りのようにランツフートで盛大に祝われた。