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HER Number:7544
Name:CASTLE ENNOR - Medieval castle, Post Medieval castle


The site of 'Castle of Ennor', a C13/C14 castle said to have been built by one of the earls of Cornwall.

Grid Reference:SV 9141 1034
Parish:St Marys, St Marys, Isles of Scilly
Map:Show location on Streetmap

Protected Status

  • Scheduled Monument 15469: ENNOR CASTLE, OLD TOWN, ST MARY'S

Other References/Statuses

  • Cornwall SURVEY NAME (temporary): RIC 150/17
  • Heritage at Risk (National)
  • OS No. (OS Quarter-sheet and OS No.): SV91SW 46
  • Primary Record No. (1985-2009): 7544
  • SMR No. (OS Quarter-sheet and SMR No.): SV91SW 17

Monument Types

  • CASTLE (Medieval - 1066 AD to 1539 AD)

  • CASTLE (Post Medieval - 1540 AD to 1900 AD)

Full description

The site of Old Town Castle is recorded on the 1963 OS map. Various sources (b2-b8) have recorded remains of a C13/C14 castle, the 'Castle of Ennor' in medieval times ('Ennor' was probably the C14 name for the island of St Mary's). It is said to have been built by one of the earls of Cornwall and known to have been occupied in 1306. Noted as a "meately strong pile" by Leland. An account of ordnance shows that in 1554 the building was used as an armoury and was fortified with five light cannon to defend the harbour and quay of Old Town. Traditionally robbed of stone for the building of Star Castle (7423.01). A C14 pot from the castle was presented to Truro Museum (RIC) in 1958. In the RIC is a copper pilgrim's medalion with rampant lion relief, with traces of gilt on the upper portion and blue enamel around the line. In about 1908 remains consisted of a crescent shaped wall, about 11m long, built on the side of granite rock. The walling was still visible when the site was visited in 1954 (b7). The OS (h2) confirm the name of 'Old Town Castle' and describe the feature as utilising a semi-circular west-facing and almost vertical rock 6.0m-9.0m high. The rock has a narrow, flattish top, apparently 20m by 10m in size and shelves on the east side for 20m before reaching ground level, though this side has a deep accumulation of earth and is heavily overgrown. The building remains consist of a single obtuse-angled wall of small well set stones, apparently unmortared but with packing pieces set into/against the rock. The west facing wall along the top edge extends 7.0m and is 0.1m high and 0.1m thick. The wall extends towards the north east for another 10m increasing to 2.0m high as the outcrop lessens, thereafter increasingly submerged in tumble. There are no particular features or cut stone (it was the cut stone that was probably removed to Star Castle, the rest hardly being worth cartage), though it has doubtless provided stone for local houses. Revisited in 1988 (h3) and observed as above. The monument was included in the Schedule on 7/10/1976, amended on 1/4/1994 and the scheduling was revised on 29/5/1996.

Site history:
1: 1975. REES, S / IAM
2: 1978. JGB / OS
3: 1988. WATERS, A / CAU

Historic Environment Projects, 2013, Ennor Castle, St Mary's, Isles of Scilly (Report). SCO27433.

<1> Ordnance Survey, 1970s, 1:10,000 OS Map (Cartographic materials). SCO4045.

<2> O'Neil, BH St J, 1961, Isles of Scilly MOW Guide, 22-23 (Bibliographic reference). SCO4042.

<3> Leland, J, 1535, The Itinerary of John Leland, 190 (Bibliographic reference). SCO3862.

<4> Saunders, AD, 1962, Harry's Walls, St Mary's, Scilly: a New Interpretation, VOL 1, 89 (Article in serial). SCO4321.

<5> SAUNDERS, AD & MILES, TJ, 1970, KING CHARLES'S CASTLE, TRESCO, SCILLY, VOL 4, 1-30 (Unedited Source). SCO8072.

<6> Henderson, C, 1955-60, Ecclesiastical Antiquities of the 109 parishes of West Cornwall & Ecclesiastical History of the 4 Western Hundreds, VOL 3, 91, 42 (Article in serial). SCO3499.

<7> DOE, 19--, Listed Building Description (original DOE), NOV 1954, 16 (Bibliographic reference). SCO5173.

<8> Thomas, AC, 1985, Exploration of a Drowned Landscape, 219-220, 233, FIG 101, 102 (Bibliographic reference). SCO4611.

Sources / Further Reading

---SCO27433 - Report: Historic Environment Projects. 2013. Ennor Castle, St Mary's, Isles of Scilly. Devon and Cornwall.
[1]SCO4045 - Cartographic materials: Ordnance Survey. 1970s. 1:10,000 OS Map.
[2]SCO4042 - Bibliographic reference: O'Neil, BH St J. 1961. Isles of Scilly MOW Guide. 22-23.
[3]SCO3862 - Bibliographic reference: Leland, J. 1535. The Itinerary of John Leland. 190.
[4]SCO4321 - Article in serial: Saunders, AD. 1962. Harry's Walls, St Mary's, Scilly: a New Interpretation. CA No 1. VOL 1, 89.
[6]SCO3499 - Article in serial: Henderson, C. 1955-60. Ecclesiastical Antiquities of the 109 parishes of West Cornwall & Ecclesiastical History of the 4 Western Hundreds. JRIC (NS) Vol 2 (part 3 & 4) Vol 3 (part2 &4). VOL 3, 91, 42.
[7]SCO5173 - Bibliographic reference: DOE. 19--. Listed Building Description (original DOE). Listing "Greenbacks". NOV 1954, 16.
[8]SCO4611 - Bibliographic reference: Thomas, AC. 1985. Exploration of a Drowned Landscape. 219-220, 233, FIG 101, 102.

Associated Finds: none recorded

Associated Events

  • ECO4593 - Ennor Castle, St Mary's, Isles of Scilly (Ref: 2013R034)

Related records: none recorded


Scilly  © Cornwall Council

Scilly © Cornwall Council