The Coat of Arms of Alderiaan is that of the ruling Gouvea family. The coast of arms is oval in shape. Inside the oval is the national colors of Alderiaan (blue and red). In the center is depicted the double-headed eagle of the royal family. The border is gold charged by a garland of encina and laurel. The crest is the Royal Crown. The crest is supported by two griffin with their upper half in black and the lower in gold. Behind the crest is the royal scepter and sword in saltire. The shield is surrounded by the collar of the Order of the Eagle and the motto: "Equidad en la Justicia" (Equity in Justice).