Cecily Bonville 7th Baroness Harington and 2nd Baroness Bonville (c. 30 June 1460 – 12 May 1529) was an English peeress who was also Marchioness of Dorset by her first marriage to Thomas Grey 1st Marquess of Dorset and Countess of Wiltshire by her second marriage to Henry Stafford 1st Earl of Wiltshire.The Bonvilles were loyal supporters of the House of York during the series of dynastic civil wars that were fought for the English throne known as the Wars of the Roses (1455–1485).
