Letton is 3.5km westnorthwest of Wigmore. At this grid reference there are several features which could represent a castle: Disturbed areas, plus a square hollow with 3m sides and ditches.

However, it is more likely to be a Deserted Medieval Village than a castle.

Letton comes from the Old English 'Leactun' which means 'leek enclosure' or 'herb garden'. (Herefordshire Place Names - Copleston-Crow, BAR  British Series 214, 1989)