HMS Edinburgh was located many years after she was sunk in WW2. She had gold bullion on board worth £5m. There was a big outcry when a salvage company recovered the gold, as she was officially designated a war grave, which, it was claimed, they desecrated.
The KMS Bismark was sunk in May 1941 by ships from the Royal Navy, including HM Ships Rodney, King George V, Dorsetshire. The wreck of the Bismark was located by Bob Ballard of Titanic fame, as it was claimed by some British sailors that torpedoes were used unnecessarily because Bismark was already on her