The House of Dreux is a noble family from France, known for its significant role in the history of the French monarchy. Founded in the 11th century, the house produced several notable figures, including Robert I of Dreux, who was a prominent military leader and the first Duke of Dreux. The family has connections to various royal houses across Europe. Throughout the centuries, the House of Dreux has been involved in numerous political and military events, often aligning with the French crown. Their influence extended beyond France, with members marrying into other noble families, thereby strengthening alliances and expanding their legacy across the continent.