The Luxembourg dynasty was a prominent European royal family that originated in the 10th century. It played a significant role in the history of Luxembourg, Bohemia, and the Holy Roman Empire. Members of the dynasty held various titles, including kings and emperors, and were known for their political influence and military prowess. One of the most notable figures from the Luxembourg dynasty was Charles IV, who became the Holy Roman Emperor in the 14th century. He is remembered for his efforts to strengthen the empire and for founding Charles University in Prague, which remains one of the oldest universities in Europe.