St Mawes Castle
Cornwall, England
St Mawes Castle is a castle in Cornwall, England, first built in 1539. It is a scheduled monument. The nearest other castle is Caerhays Castle, 9.8 mi away. It is cared for by English Heritage.

St Mawes Castle at a glance
Built
1539
16th century
Type
Castle
Cared for by
English Heritage
Heritage status
scheduled monument
Grade I listed building
About St Mawes Castle
St Mawes Castle (Cornish: Kastel Lannvowsedh) is an artillery fort constructed by Henry VIII near Falmouth, Cornwall, between 1540 and 1542. It formed part of the King's Device programme to protect against invasion from France and the Holy Roman Empire, and defended the Carrick Roads waterway at the mouth of the River Fal.
From the Wikipedia article on St Mawes Castle, CC BY-SA 4.0.
St Mawes Castle sits at 50.1554, -5.0239 in Cornwall. The closest other castles are Caerhays Castle (9.8 mi), Carn Brea Castle (11 mi) and Helston Castle (12 mi). Cornwall has 19 castles in all.