Constance of Aragon (1179 – 23 June 1222) was an Aragonese infanta who was by marriage firstly Queen of Hungary, and secondly Queen of Germany and Sicily and Holy Roman Empress.
Constance of Aragon (1179 – 23 June 1222) was an Aragonese noblewoman who, by union, initially ruled as Queen of Hungary, subsequently became Queen of Germany and Sicily, and also held the title of Holy Roman Empress.