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 (born in 1179 and died on 23 June 1222) was a member of the Aragonese royal family who, through her marriage, first became Queen of Hungary, then Queen of Germany and Sicily, and finally Holy Roman Empress.