Background
He was the son of William Fitzgerald-de Ros and Lady Georgiana Lennox. He was born in Brighton.
He was the son of William Fitzgerald-de Ros and Lady Georgiana Lennox. He was born in Brighton.
He purchased a commission as cornet and sub-lieutenant in the 1st Life Guards on 7 February 1845, succeeding Viscount Seaham, and a lieutenancy on 5 May 1848 when Seaham retired. He purchased a captaincy on 31 October 1851, succeeding Thomas Myddelton Biddulph, and on 30 August 1859, he purchased a commission as major and lieutenant-colonel upon the retirement of James Hogg. He was breveted colonel on 30 August 1864.
Fitzgerald-de Ros retired on half-pay on 29 May 1872.
The 24th Baron was Equerry to the Prince Consort from 1853–1861, and then to Queen Victoria from 1861–1874. He was also a Conservative Party Lord in Waiting from 1874–1880, 1885–1886, and 1886–1892.
Mary Fitzgerald-de Ros (born 1854), who succeeded her father upon his death. He died in Old Court, County Down.