his own ancestral seat of Potheridge, about 18 miles to the east; unfinished on his death, it was badly damaged by fire and demolished in 1734. Granville was a signatory to The Several Declarations of The Company of Royal Adventurers of England Trading into Africa, a document published in 1667 which led to the creation of the Royal Africa Company. This is speculated to have been influenced by the fact that Granville was close friends with the Royal African Company's leader, the Duke of York (and future King James II), who was brother to Charles II. Under James II, Granville served as colonel of the Earl of Bath's Regiment, later 10th Foot, first during the June 1685 Monmouth Rebellion and again in 1688. During the November 1688 Glorious Revolution, he commanded the key ports of Exeter and Plymouth but defected to William III on 18 November. He was rewarded by being made Lord Lieutenant of Devon but again failed to gain the title of Albemarle and the legal dispute over the Albemarle estate almost bankrupted him. Two weeks after his death in August 1701, his son Charles shot himself, apparently overwhelmed by the debts he had inherited. Marriage and progeny In October 1652 at Kilkhampton John Granville married Jane Wyche, a daughter of Sir Peter Wyche, English ambassador to the Ottoman Empire. By his wife, he had five children: Sons Charles Granville, 2nd Earl of Bath (1661-1701), eldest son and heir. He died from a gunshot wound during the preparations for his father's funeral, possibly suicide. He was twice married, firstly to Lady Martha Osborne, daughter of Thomas Osborne, 1st Duke of Leeds (d. 11 September 1689, aged 25), and secondly, on 10 March 1691, to Isabella van Nassau (bapt. 20 April 1668, d. in childbirth on 30 January 1692 at London), sister of Henry Nassau d'Auverquerque, 1st Earl of Grantham. He had no children by his first wife, but by his second wife was the father of: William Henry Granville, 3rd Earl of Bath (30 January 1692 – 1711) who died of smallpox aged 19 without progeny when the earldom became extinct. John Granville, 1st Baron Granville of Potheridge (1665–1707). Potheridge in Devon was the ancient seat of the Monck family, where the 1st Earl of Bath's cousin, close friend and collaborator in the Restoration of the Monarchy, George Monck, 1st Duke of Albemarle (1608–1670) had built a grand