Marquess of Aberdeen and Temair, in the County of Aberdeen, in the County of Meath and in the County of Argyll, is a title in the Peerage of the United Kingdom. It was created on 4 January 1916 for John Hamilton-Gordon, 7th Earl of Aberdeen.
The Gordon family descends from John Gordon, who fought as a Royalist against the Covenanters in the Civil War. In 1642 he was created a baronet, of Haddo in the County of Aberdeen, in the Baronetage of Nova Scotia. In 1644 he was found guilty of treason and beheaded, with the baronetcy forfeited. The title was restored after the Restoration for his son John, the second Baronet.
The second Baronet died without male issue and was succeeded by his younger brother, the third Baronet. He was a noted advocate and served as Lord President of the Court of Session and as Lord Chancellor of Scotland. On 30 November 1682 he was raised to the Peerage of Scotland as Lord Haddo, Methlick, Tarves and Kellie, Viscount of Formartine and Earl of Aberdeen. He was succeeded by his only surviving son, the second Earl. He sat in the House of Lords as a Scottish Representative Peer from 1721 to 1727. On his death the titles passed to his eldest son from his second marriage, the third Earl. He was a Scottish Representative Peer from 1747 to 1761 and from 1774 to 1790.
The third earl was succeeded by his grandson, the fourth Earl, who was the eldest son of George Gordon, Lord Haddo. Lord Aberdeen was a distinguished diplomat and statesman and served as Foreign Secretary from 1828 to 1830 and from 1841 to 1846 and as Prime Minister of the United Kingdom from 1852 to 1855. In 1815 he was created Viscount Gordon, of Aberdeen in the County of Aberdeen, in the Peerage of the United Kingdom, which entitled him to an automatic seat in the House of Lords. Aberdeen married firstly Lady Catherine Elizabeth (1784–1812), daughter of John Hamilton, 1st Marquess of Abercorn, and assumed by Royal licence the additional surname of Hamilton in 1818. When he died the titles passed to his eldest son from his second marriage to Harriet Douglas, the fifth Earl. He sat as Liberal Member of Parliament for Aberdeenshire. His eldest son, the sixth Earl, was a sailor and adventurer. He was accidentally drowned off the coast of America in 1870, and had not married or had children.