Coat of arms of w:Muzio Attendolo Sforza, founder of the Sforza dynasty: Quarterly gules and barry nebulée/wavy argent and azure (l’ondato sforzesco ("wave of Sforza")). Also used by his son w:Francesco I Sforza, and by w:Ludovico Sforza. The 1st and 4th quarters often overlaid by various heraldic badges of Sforza

Original w:canting arms of the w:House of Sforza: Azure, a lion rampant or armed and langued gules holding with its front paws a branch of quince (codogno) vert fructed or. Arms granted to w:Muzio Attendolo Sforza, founder of the Sforza dynasty, whom Pope John XXIII made Count of Codognola (w:Cotignola), the place of Attendolo's birth. (Source: Maspoli, Carlo, Arme e imprese viscontee sforzesche, 1997:) Quince = mela cotogna = codogno (Venetian), Latin cotōneum, Greek κυδώνιον. Also today the Coat of arms of the town of w:Cotignola

Arms of the Dukes of Milan, as used by the Sforza family: Imperial Eagle/Reichsadler quartering the Visconti Biscione, an augmentation awarded by the Holy Roman Emperor to the Visconti family, as Dukes of Milan, and used later also by the Sforza of Milano, after the marriage in 1441 of w:Francesco Sforza to w:Bianca Maria Visconti, the last female heir of the main branch of the w:House of Visconti