List of English Heritage properties

Columns: Name | Type | Date | Condition | Notes
Penhallam | Manor House | 12th century | Ruins | The site of a former medieval manor house surrounded by a protective moat , abandoned during the mid-14th century . Penhallam is one of only four such moated medieval manor sites in Cornwall and it consists of a quadrangle of buildings around a central courtyard | Restormel Castle | Castle | 12th century | Ruins | Situated on the River Fowey near Lostwithiel , it is one of the four chief Norman castles of Cornwall . The castle is notable for its perfectly circular design . Although once a luxurious residence to the Earl of Cornwall , the castle became ruined in the years after | St Breock Downs Monolith | Monolith | Neolithic | Remains | A 5m high prehistoric standing stone located near St Breock | St Catherine 's Castle | Device fort | 1530s | Remains | A small fort commissioned by Henry VIII to protect Fowey Harbour . A twin battery of 64-pounder guns was added on a lower terrace in 1855 . One emplacement was modified in the Second World War to mount a 4.7 naval gun , but was later removed to restore the Victorian gun races | St Mawes Castle | Device fort | 1540s | Remains | St Mawes Castle and its larger sister castle , Pendennis , were built as part of a defensive chain of fortresses by Henry VIII to protect the south coast of Cornwall , England , United Kingdom | Tintagel Castle | Castle | 13th century | Ruins | A medieval fortification located on the peninsula of Tintagel Island . It saw settlement during the Early Medieval period , when it was probably one of the seasonal residences of the regional king of Dumnonia . In the 13th century , during the Later Medieval period , after Cornwall had been subsumed into the kingdom of England , a castle was built on the site by Richard , Earl of Cornwall | Tregiffian Burial Chamber | Megalithic tomb | Neolithic | Remains | A Neolithic or early Bronze Age chambered tomb , comprising an entrance passage , lined with stone slabs , leading to a central chamber , located near Lamorna in west Cornwall | Trethevy Quoit | Megalithic tomb | Neolithic | Remains | A well-preserved megalithic tomb located near St Cleer . It is known locally as the giant 's house and stands 2.7m high , and consists of five standing stones capped by a large slab

Example questions:
What is the name of the Cornwall heritage property that was a development of pagan Celtic memorial stones ? | What is the condition of the Cornwall heritage property with a Cornish name meaning Sylvester 's house ? | What type of property is the Cornwall heritage property that was redeveloped by Richard of Cornwall in the 1220s ? | Who is the Cornwall heritage property made of granite ashlar dedicated to ? | What type of property is believed to have been used by the King of Dumnonia and is a Cornwall heritage property ?

Answers:
King Doniert 's Stone | Remains | Castle | St. Ethelred | Castle