Antigone of Gloucester

Antigone of Gloucester was an English noblewoman and the illegitimate daughter of Humphrey of Lancaster, 1st Duke of Gloucester (1390-1447). She was the granddaughter of King Henry IV. She has been thought to have been born between 1425 and 1428 but as her first child, Richard Grey, 3rd Earl of Tankerville, was born in November 1436 it is likely that she was born by 1424 at the very latest and possibly earlier. Her date of death is not known, but it was later than 1451.