LHUYD, or LHOYD, Humphrey, a learned antiquary of the sixteenth century, born at Denbigh. He applied himself to the study of physic, and, living mostly within the walls of Denbigh Castle, practised there as a physician, and died in 1570, with the character of a well-bred gentleman. He wrote and translated several pieces relative to history and antiquities, particularly the History of Cambria, or Wales, from Caradoc of Langcarvan, which, however, he did not live to finish; but Sir Henry Sidney, lord-president of Wales, employed Dr David Powel to complete it, and by him it was published in 1584. A new and improved edition of this work was published in 1774.