The Hapsburg Imperial Eagle
Following the Spanish conquest, the Aztec eagle was supplanted by the double headed Imperial Eagle of the Hapsburgs—the insignia of the Holy Roman Empire and the ruling dynasty in 16th century Spain.
This coat of arms, one of two emblazoned on the 16th century Palacio de Justicia, in Tlaxcala, includes all the elements of the Spanish royal arms, including the Hapsburg two-headed eagle, the Imperial crown, the quartered Lions and Castles (León & Castile) of Isabelline Spain, the pillars of Hercules, and the chain and lamb pendant of the aristocratic Order of the Golden Fleece.
text © 2012 Richard D. Perry
for more on the early monasteries of Puebla and Tlaxcala see our guidebook Mexico's Fortress Monasteries