HMS Buttercup

HMS Buttercup (pennant number: K193) was a Flower-class corvette built for the Royal Navy. She served during the Second World War first as part of the Royal Navy Section Belge (RNSB), and then later as part of the Royal Norwegian Navy. Between 1946 and 1957 she served as HNoMS Nordyn. The Norwegian government then sold her and she became the whaler Thoris until she was broken up in 1969.