Question: The English Heritage property in North Yorkshire that is the remains of a now-ruined keep are part of a larger structure in which condition ?

text: List of English Heritage properties
North Yorkshire

English Heritage is a registered charity that manages the National Heritage Collection. This comprises over 400 of England's historic buildings, monuments, and sites spanning more than 5,000 years of history. It has direct ownership over some historic sites and also liaises with private owners of sites that are managed under guardianship arrangements. The following is a list of English Heritage properties containing links for any stately home, historic house, castle, abbey, museum or other property in the care of English Heritage.
Name Type Date Condition Notes
Aldborough Roman Site Town 1st century Remains Remains of a Roman town , once capital of the Brigantes tribe . Ruins laid out amid a Victorian arboretum with an onsite museum
Byland Abbey Abbey 1135 Ruins Cistercian monastery with early gothic architecture
Carlton Towers Country house 1842 Complete Victorian country house design by Pugin and built in the gothic-rival style
Clifford 's Tower Castle 13th century Mostly complete The keep of York Castle , and the most prominent surviving part of the original medieval fortification . It was built on the orders of William I and rebuilt by Henry III . It has also served as a prison and a royal mint
Easby Abbey Abbey 1152 Ruins Premonstratensian abbey . Notable for its lavish roof-height refectory built around 1300 . Within the precinct is the still-active parish church , displaying 13th century wall paintings
Fountains Abbey Abbey 1132 Ruins One of the largest and best preserved ruined Cistercian monasteries in England . Owned by the National Trust and maintained by English Heritage
Gisborough Priory Priory 14th century Ruins An Augustinian priory founded in 1119 by an ancestor of Robert the Bruce . It is dominated by the skeleton of the 14th century church 's east end
Helmsley Castle Castle 13th century Ruins A castle founded around 1120 , and rebuilt around 1300 . It later became a Tudor mansion , a Civil War stronghold , and then a romantic Victorian ruin
Kirkham Priory Priory 1120s Ruins An Augustinian priory was founded in the 1120s by Walter l'Espec , lord of nearby Helmsley , who also built Rievaulx Abbey
Marmion Tower Tower 15th century Ruins A gatehouse of a vanished riverside manor house . The monuments of the manor 's family owners are in the adjacent church
Middleham Castle Castle 12th century Ruins A fortified palace in Wensleydale . Once the childhood home of Richard III
Mount Grace Priory Priory 1398 Ruins The best preserved Carthusian priory in Britain
Pickering Castle Castle 13th century Ruins A motte-and-bailey fortification used as a royal hunting lodge , holiday home and a stud farm by a succession of medieval kings
Piercebridge Roman Bridge Bridge 2nd century Remains Stonework foundations , now marooned in a field , of a bridge which once led to Piercebridge Roman Fort
Richmond Castle Castle 11th century Ruins A castle originally built to subdue the unruly North of England , it is one of the greatest Norman fortresses in Britain
Rievaulx Abbey Abbey 1132 Ruins A Cistercian abbey , and once one of the wealthiest abbeys in England . It is one of the most complete and atmospheric of England 's abbey ruins
St Mary 's Church , Studley Royal Church 1870s Complete A Victorian Gothic Revival church , located in the grounds of Studley Royal Park at Fountains Abbey
Scarborough Castle Castle 12th century Ruins A medieval Royal fortress . The site of the castle , encompasses an Iron Age settlement , Roman signal station , an Anglo-Scandinavian settlement and chapel , a 12th-century enclosure castle and an 18th-century battery
Spofforth Castle Castle 14th century Ruins The ruined hall and chamber of a fortified manor house , dating mainly from the 14th and 15th centuries . Its undercroft is cut into a rocky outcrop
Stanwick Iron Age Fortifications Hillfort Iron-age Remains An excavated section , part cut into rock , of the ramparts of the huge Iron Age trading and power-centre of the Brigantes tribe