Lamphey (Welsh: Llandyfái) is a village near the south coast of Pembrokeshire, Wales, two miles east of Pembroke. It was the birthplace of Henry VII, father of Henry VIII and includes an historic parish church and a palace known as 'Bishops Palace' due to its use by the Bishops of St David's.
In the fast-disappearing Pembrokeshire dialect, Lamphey was pronounced "Lam-fa" rather than the more usual "Lam-fey".
In the churchyard can be found the grave of one of two American casualties of the US Coast Guard Cutter,Tampa.

One was Seaman James Marconnier Fleury, USCG, but the other was never identified. They were both buried with full military honors at Lamphey Churchyard.Fleury's family later brought home his body and buried him in a cemetery in Long Island, New York but the unidentified Coast Guardsmen still rests in Lamphey Churchyard. Local citizens care for his grave to this day.
On 26 September 1918, the day of the Franco-American attack in the Argonne, Tampa was escorting convoy HG-107 from Gibraltar to Milford Haven, Wales. During the late afternoon, Tampa parted company with the convoy, which she had just escorted into the Irish Sea. Ordered to put into Milford Haven, England, she proceeded independently toward her destination. That evening, as she transited the Bristol Channel, the warship crossed the sights of UB-91. The U-boat made a submerged attack which sank Tampa with a single torpedo.

It appears that the action took place sometime between 2030 and 2100. Ships in the convoy lost sight of her as she slipped over the horizon at about 1900, and the radio operator on board the convoy flagship reported having felt the shock of an underwater explosion at about 2045. Furthermore, German records of UB-91's war cruise specifically identify a ship very closely approximating Tampa as the ship she sank "at evening twilight" on 26 September. In all probability, Tampa went down rapidly. She sank with all hands: 131 officers, crew and passengers. Search and rescue efforts over the succeeding three days turned up only some wreckage, clearly identified as coming from Tampa. Two bodies in U.S. naval uniforms later washed ashore. No survivors were ever found. The dead included 111 Coast Guardsmen, four U.S. Navy men, a captain of the British Army and ten seamen of the Royal Navy, and five civilian employee dock workers.