Hungerford was the second, but eldest surviving son of
Sir George Hungerford of Cadenham House,
Bremhill, Wiltshire and his wife, Frances Seymour, daughter of
Charles Seymour, 2nd Baron Seymour of Trowbridge. He was sent away to sea as a young man with a loan of £500 from his father. He later raised a lengthy suit in Chancery against his father, and also alienated his sister Frances after claiming the reversion of her house in
Yatesbury, a dowry from Sir George, following her husband's death in 1693; he refused to repay the £1,000 mortgage owed to Sir Robert Holford, who threatened to evict Frances. He married Elizabeth Dodson of
St Clement Danes, London on 22 November 1703. He succeeded his father in 1712. ==Career==