HMS Titania was a submarine depot ship, often seen in Hong Kong during 1919-1929, when she was part of the 4th Submarine Flotilla. The flotilla also included a second depot ship, HMS Ambrose, and 13 L-class submarines: L1, L2, L3, L4, L5, L6, L7, L8, L9, L15, L19, L20 and L33.
