Richard Grosvenor, 1st Baron Stalbridge

Grosvenor was the fourth but second surviving son of Richard Grosvenor, 2nd Marquess of Westminster, and Lady Elizabeth Mary, daughter of George Leveson-Gower, 1st Duke of Sutherland. Hugh Grosvenor, 1st Duke of Westminster, was his elder brother. He was educated at Westminster School and admitted on 24 January 1849 to Trinity College, Cambridge, matriculating in 1855, he was awarded MA graduation in 1858. During an adventurous youth, he toured the western United States and was present at the sack of the Summer Palace during the Second Opium War.

On 20 April 1858, he was commissioned a lieutenant in the Dorsetshire Yeomanry and promoted to lieutenant-colonel on 19 July 1866. He succeeded Lord Digby as lieutenant-colonel commandant on 20 September 1870.

Lord Stalbridge married at Westminster Abbey on 5 November 1874, as his first wife the Hon. Beatrice Charlotte Elizabeth Vesey, third and youngest daughter of Thomas Vesey, 3rd Viscount de Vesci, by Emma, youngest daughter of the 11th Earl of Pembroke. She died of pleurisy in Brook Street in 1876, shortly after the birth of their only child:

Hon. Elizabeth Emma Beatrice Grosvenor (1875–1931), who on 1 June 1899 married Aubrey Clare Hugh Smith, RN, who later became an admiral.

Stalbridge married his second wife on 3 April 1879, Eleanor Frances Beatrice (d.1911), younger daughter of Robert Hamilton-Stubber of Moyne, Queens County, by Olivia, daughter of the Rev Edward Lucas. They had five children:

Hugh Grosvenor, 2nd Baron Stalbridge (1880–1949), twin

Hon. Blanche Grosvenor (1880–1964), twin, married Lieutenant-Colonel James Holford

Hon. Gilbert Grosvenor (1881–1939), married Effie E. Cree; no issue

Captain Hon. Richard Eustace Grosvenor, MC (1883–1915), killed in the First World War

Hon. Eleanor Lilian Grosvenor (1885–1977), married Major Josceline Grant; mother of Elspeth Huxley

Lady Stalbridge died on 21 March 1911 at 22 Sussex Square, and was buried on 25 March at Motcombe. Lord Stalbridge survived her by about a year and died at his London home on 18 May 1912, aged 75. He was succeeded in the barony by his eldest son, Hugh. His will was probated in July 1912 at £5,863 gross, and £2,849 net.

Grosvenor was Liberal Party Member of Parliament for Flintshire from 1861 until 1886. On 19 March 1872 he was sworn of the Privy Council and appointed Vice-Chamberlain of the Household by William Ewart Gladstone, a post he held until the government fell in 1874. When the Liberals returned to power in 1880 under Gladstone, Grosvenor was made Patronage Secretary to the Treasury, as the Chief Whip was known. He remained in this post until 1885, but disagreed with Gladstone over Irish Home Rule and resigned his seat in protest (by accepting appointment as a Steward of the Chiltern Hundreds in 1886. He was subsequently raised to the peerage on 22 March 1886 as Baron Stalbridge, of Stalbridge in the County of Dorset, and became a leader of the Liberal Unionist Party from the House of Lords.