Yes they sank the Queen Elizabeth at her mooring by the Italianicon Human Torpedo's in Alexandria Harbour they kept it secret but she was sitting on the bottom until they could refloat her and get her dry docked very brave men it cost them. I have the book underwater warriors very brave on both sides not sure I think it was the Italians that called their ride "The Pig"

HMS Queen Elizabeth;
Queen Elizabeth took part in the Dardanelles Campaign of 1915 bombarding forts, but missed Jutland in 1916. She became Admiral Beatty's flagship in 1917 after he assumed command of the Grand Fleet. In the Second World War she was mined by Italian frogmen and badly damaged, but did not ground in the shallow water of Alexandria Harbour in 1941. She was subsequently repaired, and served in the Far East until 1945.