DisgrifiadGatehouse to Usk Priory (Benedictine Nuns: see Nprn20700), founded in about 1135, dissolved 1536: the gate passage has round-headed arches and a side door, whilst the upper two stories have mullioned windows and pointed gables, apparently early 16th century.
(source Os495card; SO30SE32.4)
J.Wiles 03.02.05