Coat of Arms of the Grimaldi House

Comprises a silver shield decorated with red diamonds surrounded by the Order of St. Charles collar. It is placed on a red coat lined with ermine, topped by the royal crown.

Standing at each side of the shield are two monks brandishing raised swords. Below them is a banderole with the royal motto Deo Juvante (with God's Help).

Coat of arms of the Grimaldi House