Mother Lady Eleanor Neville Name Lady Percy | Died 1475 Grandchildren Henry Cavendish | |
Father Henry Percy, 2nd Earl of Northumberland Spouse Edmund Grey, 1st Earl of Kent (m. 1440) Children George Grey, 2nd Earl of Kent, Mary Grey, Anne Grey, Lady Elizabeth Grey, Edmund Grey, Anthony Grey, John Grey Parents Henry Percy, 2nd Earl of Northumberland, Eleanor Percy, Countess of Northumberland Similar People Joan Beaufort - Countess, Ralph Neville - 1st Earl of W, Henry Percy, Cecily Neville - Duchess, Henry Cavendish |

Lady Katherine Percy (May 18, 1423 – c. 1475) was the daughter of Henry Percy, 2nd Earl of Northumberland and Lady Eleanor Neville.
Her maternal grandparents were Ralph Neville, 1st Earl of Westmorland and his second wife Joan Beaufort, a legitimized daughter of John of Gaunt.
She married Edmund Grey, 1st Earl of Kent and had seven children:
References
Lady Katherine Percy Wikipedia(Text) CC BY-SA