The Old Blockhouse, also known as the Dover Fort, is a 16th-century fortification on the island of Tresco in the Isles of Scilly. It was built between 1548 and 1551 by the government of Edward VI to protect the islands against French attack.
Overlooking Old Grimsby harbour and the anchorage of St Helen's Pool, the blockhouse would have housed a battery of two or three artillery pieces, positioned on a square gun platform on top of a rocky outcrop. An earthwork bank and a stone wall were built to protect it from attack from the beach and the landward sides respectively. A small room to provide living quarters for the garrison was later constructed on the side of the gun platform.
During the interregnum following the English Civil War, the Old Blockhouse was occupied by the Royalists and it was attacked by the Parliamentary forces of Sir Robert Blake in 1651. Blake's naval guns out-ranged those of the fort, and, after fierce fighting, the blockhouse was taken. A battery of guns was maintained at the blockhouse until at least the 1750s, but by the end of the 18th century the fortification was disused and in ruins.
After 1922 the blockhouse was placed into the guardianship of the state by the lessee of the island, Arthur Dorrien-Smith, and in the 21st century it is controlled by English Heritage and open to tourists. It is protected as a scheduled monument under UK law.
The OldBlockhouse, also known as the Dover Fort, is a 16th-century fortification on the island of Tresco in the Isles of Scilly. It was built between...
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1900), p. 52; C. E. Cory, "Old Block House," biographical scrapbook, p. 204 (from the KSHS, Topeka); Cory, "The OldBlockhouse," The Bourbon News (Fort...
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