William Stuart Knox DL JP (11 March 1826 – 16 February 1900), was an Irish politician.
[3] His paternal grandparents were Thomas Knox, 1st Earl of Ranfurly, and the Hon.
[4][5] Knox was elected Member of Parliament for Dungannon in 1851 (succeeding his elder brother Viscount Northland), a seat he held until 1874.
From 1867 he was Honorary Colonel in the Mid Ulster Artillery, and he served as a Deputy Lieutenant and Justice of the Peace for County Tyrone.
They had several children, including:[3] He died at Cheltenham on 16 February 1900, aged 73.