In 1748 Lady Jane Douglas, then aged 50, announced the birth in Paris of twin sons by her secret marriage with an elderly bankrupt, formerly a colonel in the Swedish service. The Duke of Douglas suspecting fraud, refused to recognize the children as his nephews, disinherited his sister, and entailed his estates upon his heir male the Duke of Hamilton. Lady Jane died in 1753, shortly after the death of the younger twin, and Archibald, left destitute, with his putative father in a debtors’ jail, was brought up by Lady Schaw (widow of Sir John Schaw of Greenock), on whose decease in 1757 the Duke of Queensberry assumed the responsibility.
From 1759 his fortunes improved; his father succeeded to the Grandtully baronetcy; the Duke of Douglas was persuaded to revoke the Hamilton settlement in 1760, and shortly before his death in 1761 recognized Archibald as his nephew and heir.
The financial catastrophe of 1772 and the winding up of the Ayr Bank in 1773 obliged him to encumber his estates, but did not seriously affect his great fortune and interest. Allied by his marriage with the Montrose interest in Perthshire, he intervened at the by-election of 1773, and again in 1774, in support of Thomas Graham of Balgowan against James Murray and the Atholl interest.
His ambition now centred on obtaining a peerage either by establishing his right to the earldom of Angus or by a new creation. ‘He has flattered himself’, wrote Boswell in 1776, ‘with being created Earl of Douglas.’
Disappointed of a seat in either House, Douglas offered with his brother-in-law Lord Graham to raise a regiment in 1778, but was refused.
He stood for Forfarshire in 1782 at a by-election, and was returned against Sir David Carnegie, who petitioned on the ground that Douglas as a claimant to the earldom of Angus should be disqualified. Elected on 11 Feb. Douglas did not take his seat for at least six weeks, possibly to avoid embarrassment while the Ayr Bank affairs were again before the House, but primarily to delay committing himself for or against the tottering North Administration. On the crucial division of 15 Mar. Robinson listed him among the ‘persons who stayed away’ although he was believed to be in London.
Created a British peer in 1790, he lived in great magnificence in London and in his Scottish castles. He died 26 Dec. 1827.
