Cainhoe Castle was an 11th-century Norman castle, located near the village of Clophill, in the county of Bedfordshire, England. Cainhoe Castle was a motte and triple bailey castle, built by Nigel d'Aubigny, a Norman Knight, sometime after the Norman Invasion (1066). It was not mentioned in the Domesday Book of 1086; The castle was occupied until the time of the Black Death (1348), when all the inhabitants died of the disease. The castle, and the small village that had built up around it, were discovered abandoned sometime later.