I quote below from:

A HARD FOUGHT SHIP: THE STORY OF HMS VENOMOUS
See: [www.holywellhousepublishing.co.uk]

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On 15th June Capt Lord Teynham came aboard Venomous to accept the surrender of the German Admiral and the commanding officers of the German U-boats berthed further up Kristiansand Fjord at Marviken, as described by Prideaux:
“On the 15th of May German Officers came on-board Venomous – they had to row their own boat – to sign over the necessary handover documents. Present on board on the occasion were the Allied Naval Area Commander, Capt Lord Teynham, and the Norwegian Navy District Commander, Commodore Landgraff, who actually followed Venomous from England”.

Fred Mercer was sent in the ship’s boat to collect the German admiral who congratulated Fred on his seamanship as he brought the boat alongside Venomous. Some of the officers personally surrendered by presenting their Lugar revolvers to Lt(E) Forster and Lt Caudle and when their ‘guests’ had left, one of them accidentally discharged his unfamiliar sidearm piercing a bulkhead and nearly hitting the CO. Fred Mercer remained in Kristiansand and returned later on one of the captured U-boats.

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Fred Mercer died before I could discuss this with him but his widow told me that he returned with one of the captured U-Boats instead of remaining with his own ship, HMS VENOMOUS.

Crusader, do you know whether he would have returned on HMS LOCH ECK? And why? Other than having impressed the German Admiral!

And do you know the name of the Admiral & anything further about him?

My father was on HMS VENOMOUS at the time.

Bill Forster