P_N - I was once talking to an elderly lady in my shop. She was telling me that her father had been one of the crew of Charybdis who was lost in the action described in your link. A man who was browsing in the shop came over and after excusing himself for interrupting informed us he was a navy diver, and earlier that year had been one of a team of divers who had gone down to the remains of the ship and attached a white ensign to the wreck, a ceremony which apparently takes place annually, presumably on the anniversary of its loss. The lady was very moved, and the chap promised to get in touch with her and send her a photo of the wreck with its newly attached ensign.
Amazing coincidence, and a very happy one.