The peerage was created in 1857 for the Whig politician Lord Robert Grosvenor. He was the third son of Robert Grosvenor, 1st Marquess of Westminster and his wife Lady Eleanor, daughter of Thomas Egerton, 1st Earl of Wilton. Both Lord Robert and his elder brother Lord Thomas were in special remainder to the Viscountcy of Grey de Wilton and Earldom of Wilton created for their maternal grandfather in 1801, and on the latter's death in 1814 Lord Thomas succeeded as second Earl of Wilton. Lord Ebury was succeeded by his eldest son, the second Baron. He represented Westminster in Parliament as a Liberal. His grandson, the fifth Baron, served as a government whip from 1939 to 1940 in the government of Neville Chamberlain. In 1999 his eldest son, the sixth Baron, succeeded as eighth Earl of Wilton on the death of his cousin the seventh Earl.
Barons Ebury (1857)
- Robert Grosvenor, 1st Baron Ebury (1801–1893)
- Robert Wellesley Grosvenor, 2nd Baron Ebury (1834–1918)
- Robert Victor Grosvenor, 3rd Baron Ebury (1868–1921)
- Francis Egerton Grosvenor, 4th Baron Ebury (1883–1932)
- Robert Egerton Grosvenor, 5th Baron Ebury (1914–1957)
- Francis Egerton Grosvenor, 8th Earl of Wilton, 6th Baron Ebury (b. 1934)
for further barons, see Earl of Wilton.