John Digby, first Earl of Bristol (1580-1654) was an English diplomat who served as ambassador to Spain under James I. He was a prominent supporter of the proposed marriage between the future Charles I and the Infanta of Spain, and a Royalist during the English civil war.
George Digby, second Earl of Bristol (1612-1677) was an English politician and Royalist. Known as a great orator, Digby never held high office, probably because of his Roman Catholicism and his frequent political intrigues. He served briefly as secretary of state to the exiled Charles II.
Sir Kenelm Digby (1603-1665), cousin of the first Earl of Bristol, was a courtier, diplomat, and natural philosopher whose publications include The Nature of Bodies and On the Immortality of Reasonable Soules (both 1644). He also published apologetics for Roman Catholicism, and is considered the inventor of the modern wine bottle.
Sir William Digby, fifth Baron Digby (1662-1752), succeeded to his title in the Irish peerage in 1686. In 1690 he was elected to the House of Commons for Warwick and held the seat until 1698. His sons predeceased him, and he was succeeded by his grandson Edward Digby.