She was betrothed at the age of three to Arthur, Prince of Wales, heir apparent to the English throne. Educated & poised she married Arthur in 1501 at age sixteen, but was tragically widowed five months later. In 1509 she married Arthur's younger brother, King Henry VIII. A quarter century marriage without a male heir was illegally broken when Henry became infatuated with Anne Boleyn. Banished from court, she died at the age of fifty-one, never having returned to Spain. "Though unqueened, yet like/ a queen and daughter to a king, inter me."