In use since 1413? (possibly earlier)
Blazon: Bendy dancetty or and azure, on a chief of the first an eagle displayed sable
The Petruccis ruled Siena from 1487 until 1529. The name is allegedly derived from the small stature of the founder of the house, Pietro d’Altomonte, who was called by the diminutive Petruccio. The eagle in the arms may be derived from the Marescotti coat of arms, as Pietro married Giulia Marescotti.