HMS Launceston Castle (K397) was a of the United Kingdom's Royal Navy, named after Launceston Castle in Cornwall. The ship was constructed during the Second World War and saw service primarily as a convoy escort. Service history Launceston Castle was launched by Blyth Shipbuilding and Drydock Company at Blyth in Northumberland on 27 November 1943. In the Second World War she served as a convoy escort. Launceston Castle served in the 30th Escort Group commanded by Denys Rayner RNVR carrying his flag on board . She sank the south of Ireland on 11 November 1944, supported by her sister ships Pevensey Castle, and . In 1953 she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II. References Publications Castle-class corvettes 1943 ships Ships built on the River Blyth