for Aylesbury (in 1584) and Hythe (in 1586, 1587 and 1604), and grandson of Thomas Smythe, of Westenhanger Castle, collector of customs for London, haberdasher, and M.P.
The sixth Viscount was British ambassador to Portugal, Sweden, the Ottoman Empire and Russia.
He was a Conservative politician, best known for his association with Benjamin Disraeli and the Young England movement.
He died young and was succeeded by his younger brother, the eighth Viscount.
The titles became extinct on his death in 1869 (156 years ago) (1869), although his widow, Viscountess Strangford, lived until 1887.