Robert Hobart, 4th Earl of Buckinghamshire

Robert Hobart, 4th Earl of Buckinghamshire, (6 May 1760 – 4 February 1816)), styled Lord Hobart from 1798 to 1804, was a British Tory politician who served as Secretary of State for War and the Colonies from 1801 to 1804.

Life Buckinghamshire was born at Hampden House, the son of George Hobart, 3rd Earl of Buckinghamshire and Albinia, daughter of Lord Vere Bertie, younger son of Robert Bertie, 1st Duke of Ancaster and Kesteven. He was educated at Westminster School, London and later served in the American Revolutionary War.

Political career Buckinghamshire was a Member of Parliament (MP) in the Irish House of Commons for Portarlington from 1784 to 1790 and thereafter for Armagh Borough from 1790 to 1797. He sat also in the British House of Commons for the rotten borough of Bramber in 1788, a seat he held until 1790, and then for Lincoln from 1790 to 1796. He acted as aide-de-camp to successive Lord Lieutenants of Ireland from 1784 onwards, and from 1789 to 1793 he was chief secretary to the Lord Lieutenant, exerting his influence in this country to prevent any concessions to Roman Catholics.

In 1793 he was invested a member of the Privy Council, and appointed Governor of Madras. In 1798 he was recalled to England by the President of the Board of Control responsible for Indian affairs, Henry Dundas and summoned to the House of Lords through a writ of acceleration in his father's junior title of Baron Hobart. In the Lords, he favoured the union between England and Ireland.

He had two illegitimate children with Margaretta Adderley before they married: Charles John Robert Ellis (1786–1835), married Myra Ann Kinchant, daughter of Richard Kinchant Sir Henry Ellis (1788–1855)

They married in 1792.

Lady Sarah (1793–1867), who married Prime Minister Lord Goderich and was the mother of George Robinson, 1st Marquess of Ripon John Hobart (born 29 November 1795 in Madras), who died in infancy

After Margaretta's death in 1796 in Madras, he married secondly the Hon. Eleanor Eden, daughter of William Eden, 1st Baron Auckland, in 1799. Two years earlier William Pitt the Younger had broken off what was generally believed to be an informal engagement to Eleanor. There were no children from this marriage. Lord Buckinghamshire died in February 1816 at the age of 55, after a fall from his horse. He was succeeded in the earldom by his nephew, George. Lady Buckinghamshire died in October 1851, aged 74.