House of Grimaldi
The coat of arms is used on the princely flag of Monaco (variously "princely standard", "government flag", "state flag and ensign, war flag and ensign") as the central charge on a white background, under Article 7 of the Monegasque Constitution, which reads "The Princely flag shall be made of the arms of the House of Grimaldi on a white background". The civil flag utilises red and white, the heraldic colours of the House of Grimaldi.