The coat of arms of the King of Spain contains the arms from the monarchs of Castille, Leon, Aragon and which other former Iberian kingdom?

The story behind the answer

Navarre is correct because the modern Spanish royal arms are quartered for the historic monarchs of Castile (castle), León (lion), Aragon (red-and-gold pallets), and Navarre (gold chains on red with an emerald center). Granada does appear, but only as a small pomegranate at the base (“enté en point”), commemorating its 1492 conquest—not as one of the four main quarters. Catalonia’s arms are effectively those of Aragon, since Catalonia belonged to the Crown of Aragon.

Context tip: The chains of Navarre recall the 1212 Battle of Las Navas de Tolosa, where Navarrese forces broke the enemy’s chain defenses. Memory aid: “Castle, Lion, Aragon’s Bars, Navarre’s Chains—plus a pomegranate at the point.”