William FitzGerald-de Ros, 22nd Baron de Ros

The Lord de Ros
William Lord De Ros
Captain of the Yeomen of the Guard
In office
27 February 1852  17 December 1852
MonarchQueen Victoria
Prime MinisterThe Earl of Derby
Preceded byThe Marquess of Donegall
Succeeded byThe Viscount Sydney
In office
17 March 1858  11 June 1859
MonarchQueen Victoria
Prime MinisterThe Earl of Derby
Preceded byThe Viscount Sydney
Succeeded byThe Earl of Ducie
Personal details
Born1 September 1797
Thames Ditton, Surrey
Died6 January 1874 (1874-01-07) (aged 76)
Old Court, Strangford, County Down
NationalityBritish
Political partyConservative
Spouse(s)Lady Georgiana Lennox
(1795–1891)

William Lennox Lascelles FitzGerald-de Ros, 22nd Baron de Ros of Helmsley, PC, DL (1 September 1797 – 6 January 1874), was a British soldier and Conservative politician. A general in the Army, he also held political office as Captain of the Yeomen of the Guard in 1852 and between 1858 and 1859.