This locket is one of many archaeological finds from the wreck site of the Royal Yacht Mary - one of hundreds of wrecks in the Irish Sea and Liverpool Bay, and an example of how dangerous the passage to and from Liverpool can be. The local knowledge and ship handling skills of Liverpool pilots remains crucial in ensuring ships make the passage to Liverpool safely.
On the night of 25 March, 1675, the yacht Mary was on her way from Ireland bound for the River Dee and Chester. Mary was the first royal yacht - a gift to King Charles II from the Dutch city of Amsterdam. Disaster struck in dense fog off Anglesey, when a fierce tidal stream pushed Mary onto the jagged rocks of the Skerries seven miles north of Holyhead. The yacht was stuck on the rocks and wrecked. 35 of the 74 passengers and crew on board died.