Charles IV

Coat of arms of the House of Luxembourg–Bohemia Arms of Charles IV as Holy Roman Emperor Charles IV (German: Karl IV.; Czech: Karel IV.; Latin: Carolus IV; also known as Charles of Luxembourg German: Karl von Luxemburg; Czech: Karel Lucemburský; Latin: Carolus Luxemburgensis; Luxembourgish: Karel vu Lëtzebuerg; born Wenceslaus German: Wenzel; Czech: Václav; 14 May 1316 – 29 November 1378) was Holy Roman Emperor from 1355 until his death in 1378. He was elected King of Germany (King of the Romans) in 1346 and became King of Bohemia (as Charles I) that same year. He was a member of the House of Luxembourg from his father's side and the Bohemian House of Přemyslid from his mother's side; he emphasized the latter due to his lifelong affinity for the Bohemian side of his inheritance, and also because his direct ancestors in the Přemyslid line included two saints.

He was the eldest son and heir of John of Bohemia, King of Bohemia and Count of Luxembourg, who died at the Battle of Crécy on 26 August 1346. His mother, Elizabeth, Queen of Bohemia, was the sister of Wenceslaus III, King of Bohemia and Poland, the last of the male Přemyslid rulers of Bohemia. Charles inherited the County of Luxembourg from his father and was elected king of the Kingdom of Bohemia. On 2 September 1347, Charles was crowned King of Bohemia.