HMS Saga was an S class submarine

British S class submarine (1931)

The S-class submarines of the Royal Navy were originally designed and built during the modernisation of the submarine force in the early 1930s to meet the need for smaller boats to patrol the restricted waters of the North Sea and the Mediterranean Sea replacing the British H class submarines...

 of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, and part of the Third Group built of that class. She was built by Cammell Laird and launched on March 14, 1945. So far she has been the only ship of the Royal Navy to bear the name Saga, after the Norse Saga

Saga

Sagas, are stories in Old Norse about ancient Scandinavian and Germanic history, etc.Saga may also refer to:Business*Saga DAB radio, a British radio station*Saga Airlines, a Turkish airline*Saga Falabella, a department store chain in Peru...

s.

Built as the Second World War was drawing to a close, she did not see much action. On 10 February 1946 Saga collided with the trawler Girl Lena in the English Channel. The Girl Lena was sunk. Saga was sold to the Portuguese Navy in 1948 and renamed Nautilo.