The Delamare/de la Mare castle in Somersetshire is actually Nunney Castle, not Monney Castle. "Monney" is a mistake that started on-line in genealogical profiles and has just spread from there.
I am going around fixing all of the "Monney" profiles I can find, but I thought I'd post this publicly for anyone else working on the Delamare, Prater/Prather, Paulet/Paulett, and Whitchurch families.
(I've also made a Nunney Castle profile image; knock yourselves out tagging other ancestors in it if you'd like.)
