John Henry of Luxembourg (Czech: Jan Jindřich Lucemburský, German: Johann Heinrich von Luxemburg, Luxembourgish: Jang Henri vu Lëtzebuerg; 12 February 1322 – 12 November 1375), a member of the House of Luxembourg, was Count of Tyrol from 1335 to 1341 and Margrave of Moravia from 1349 until his death.
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Early life
Henry was born at Mělník, the third surviving son of King John of Bohemia (1296–1346) and his wife, the Přemyslid princess Elizabeth (1292–1330). John Henry therefore was the younger brother of Emperor Charles IV. At the time of his birth, the marriage of his parents was already broken; his mother fled to the court of their son-in-law Duke Henry XIV of Bavaria, and John Henry was raised in Cham, Upper Palatinate.
County of Tyrol
King John made attempts to reconcile with his former rival Henry, duke of Carinthia and count of Tyrol, whom he had deposed as king of Bohemia in 1310. In 1327, his younger son John Henry and Henry's daughter, Countess Margaret of Tyrol, were betrothed. As Henry had no sons, King John expected a considerable enlargement of the Luxembourg lands and control over the Tyrolean mountain passes to Italy. John Henry and Margaret were married on 16 September 1330 at Innsbruck. Their suzerain, Emperor Louis IV, in the same year secretly promised Carinthia, the March of Carniola, and large parts of Tyrol to Henry's nephews Dukes Albert II and Otto of Austria.