Cunard

In November 1888, the SS Nantes, which was operated by the Cunard Steamship Company, collided with a German sailing vessel, the Theodor Ruger, said Dr Bennett.

Dr Bennett said it was identified by the build and dimensions of the wreck, the technology on board, the cargo and "lastly and most telling, they find a plate on the back of which is stamped Cunard - this is a Cunard ship".

Since the initial find, Mr Robinson said he had dived the wreck again and found a second piece of Cunard crockery, providing "even more confirmation".

Other landmarks including St George's Hall and the Cunard Building in Liverpool, the Mersey Gateway Bridge and Chester Town Hall will also be illuminated, as well as hospitals across the North West.

Cunard's newest cruise ship is set to arrive at its home port of Southampton.