HSwMS Sundsvall (J12) Wikipedia
HSwMS Sundsvall (naval designation J12) was a Swedish destroyer, later rebuilt as a frigate, in the four-ship Visby class. The ship was named after the Swedish coastal city of Sundsvall.
Sundsvall was laid down in 1942 during the Second World War, and was commissioned on 17 September 1943. She survived the war, and was modified and redesigned as a frigate in 1965. She was kept in service by the Swedish Navy until 1982, and was then used for testing of the Navy's RBS-15 anti-ship missile. The ship was later sold to Spain for scrapping.