Wenceslaus I, Duke of Luxembourg

Wenceslaus I (1337–1383), first Duke of Luxembourg, was the son of John the Blind of Bohemia and Beatrice of Bourbon. In 1352 he married Joanna, heiress of Brabant, and in 1353 his half-brother Charles IV made him Count of Luxembourg; it became a duchy in 1354.

After Joanna inherited Brabant in 1355 he confirmed its liberties. Captured at Baesweiler in 1371, he spent eleven months a prisoner. He died in 1383; a poet himself, he left seventy-nine poems.