Henry IV, Duke of Luxembourg was a prominent nobleman in the 14th century, born around 1280. He belonged to the House of Luxembourg and was the son of Henry III, Duke of Luxembourg. Henry IV played a significant role in the politics of the Holy Roman Empire and was known for his efforts to expand his family's influence. In 1313, he became the Duke of Luxembourg after his father's death. Henry IV's reign was marked by territorial conflicts and alliances, particularly with neighboring regions. He was also involved in the election of Louis IV, Holy Roman Emperor, further solidifying his family's power in European politics.