On 16 Dec 1485 Catherine of Aragon was born to Ferdinand II King Aragon (age 33) and Isabella Queen Castile (age 34). She was possibly named after her Great Grandmother Catherine of Lancaster Queen Consort Castile daughter of John of Gaunt 1st Duke Lancaster and Constance of Castile Duchess of Lancaster. She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 3.23%.