Sicilian coats of arms are medieval symbols used as indications of nobility, gentility and heritage. They were typically displayed above the entrances of nobles' residences.
Coats of arms were meant to display noble status and heraldry, yet many families outside of the actual feudal tenure assumed them at their leisure. This was widely practiced until further efforts to assess and determine heraldry were enacted. Coats of arms were intended to be unique, although division and unification of states commonly led to nobles of the same ancestry using identical coats of arms in different regions.
Coats of arms were commonly shield-shaped, with quartered designs displaying branches of their families. Specific symbols such as trees, castles and swords were used to designate certain family names, virtues and regions.