In
1645 he joined Montrose at Philiphaugh, and was imprisoned in 1646 at
Edinburgh Castle, only obtaining his release by signing the Covenant.
His eldest son, Archibald, created earl of Ormond, Lord Bothwell and
Hartside, in 1651, predeceased his father; Lord James Douglas (c.
1617-1645) and his half-brother, Lord George Douglas (c. 1636-1692),
created earl of Dumbarton in 1675, successively commanded a Scots
regiment[3] in the French service. William (1635-1694), created earl of
Selkirk in 1646, became 3rd duke of Hamilton after his marriage (1656)
with Anne, duchess of Hamilton in her own right. By the failure of heirs
in the elder branches of the family the dukes of Hamilton (q.v.) became
heirs-male of the house of Douglas.

JAMES DOUGLAS, 2ND MARQUESS OF DOUGLAS (1646-1700), succeeded his
grandfather in 1660. His eldest son, John, by courtesy earl of Angus,
raised a regiment of 1200 men, first known as the Angus regiment, later
as the Cameronians (26th Foot). He was killed at its head at Steinkirk
in 1692. The younger son, ARCHIBALD, 3RD MARQUESS (1694-1761), was
created duke of Douglas in 1703, but the dukedom became extinct on his
death, without heirs, in 1761. He was a consistent supporter of the
Hanoverian cause, and fought at Sheriffmuir. The heir-presumptive to the
Douglas estates was his sister, Lady Jane Douglas (1698-1753), who in
1746 secretly married Colonel, afterwards Sir, John Steuart of
Grandtully, by whom she had twin sons, born in Paris in 1748. These
children were alleged to be spurious, and when Lady Jane and the younger
of the two boys died in 1753, the duke refused to acknowledge the
survivor as his nephew; but in 1760 he was induced, under the influence
of his wife, to revoke a will devising the estates to the Hamiltons in
favour of Lady Jane's son, Archibald James Edward Steuart (1748-1827),
1st baron Douglas of Douglas (cr. 1790) in the British peerage. The
inheritance of the estates was disputed by the Hamiltons, representing
the male line, but the House of Lords decided in favour of Douglas in
1769. Three of his sons succeeded Archibald Douglas as Baron Douglas,
but as they left no male issue the title passed to the earls of Home,
Cospatrick Alexander, 11th earl of Home, having married a granddaughter
of Archibald, 1st Baron Douglas. Their descendants, the earls of Home,
represent the main line of Douglas on the female side.

AUTHORITIES.--David Hume of Godscroft (1560?-1630), who was