Charles IV was king of Bohemia and also the first Bohemian ruler to become Holy Roman Emperor. Born in Prague to King John of Luxembourg and Queen Elizabeth of Bohemia, he belonged to the ‘House of Luxembourg’ from his father’s side and to the ‘House of Premyslid’ from his mother’s. He was fluent in five languages - Latin, Czech, German, French, and Italian. Raised as the heir apparent (being the oldest son of King John of Luxembourg), he inherited the ‘County of Luxembourg’ from his father upon his death in 1346 and was crowned King of Bohemia. Becoming King of Bohemia, Charles introduced the ‘Golden Bull,’ a series of ordinances that aimed at putting the empire in order and stronger. The prince-electors of the ‘Holy Roman Emperor’ elected him to be King of the Romans. Later in 1355, he was crowned ‘King of Italy’ and the ‘Holy Roman Emperor.’ After becoming King of Burgundy in 1365, he became the sole ruler of all the ‘Holy Roman Empire.’