A settlement of servants and manual workers grew up around the castle and this became the village of Castlethorpe ("thorpe" is an Old Norse language (particularly Danish) word for "homestead", and it is not unreasonable to assume that there may well have been a Danish settlement nearby as the area was, if not part of, certainly close to, the Danelaw). The castle was damaged in 1215 in a feud between Foulkes de Brent who had been sent by King John and William Mauduit, the castle's owner. Mauduit was reputedly in rebellion against the King. Although Mauduit returned to claim his seat after the King's death, the castle was demolished shortly afterward. All that is left today are the grassy mounds of the former Motte-and-Bailey castle.