William Douglas, 8th Earl of Douglas
William Douglas, 8th Earl of Douglas, 2nd Earl of Avondale( 1425 – 22 February 1452) was a late Medieval Scottish nobleman, Lord of Galloway, and Lord of the Regality of Lauderdale, and the most powerful magnate in Southern Scotland.
Stewart Douglas, 22nd Earl of Morton
John Stewart Sholto Douglas, 22nd Earl of Morton( born 17 January 1952) is a Scottish peer and landowner.
Known as Stewart, Douglas is the son of John Douglas, 21st Earl of Morton and Mary Sheila Gibbs.
He succeeded to the earldom in 2016, upon the death of his father.
He married Amanda Kirsten Mitchell and has three children.
William Douglas, 6th Earl of Morton
William Douglas, 6th Earl of Morton( c. 1540 – 1606) was the son of Sir Robert Douglas of Lochleven and Margaret Erskine, a former mistress of James V of Scotland.
Archibald Douglas, 8th Earl of Angus
Archibald Douglas, 8th Earl of Angus and 5th Earl of Morton( 15554 August 1588) was the son of David, 7th Earl of Angus.
He succeeded to the title and estates in 1558, being brought up by his uncle, James Douglas, 4th Earl of Morton, a Presbyterian.
In 1573 he was made a Privy Councillor and Sheriff of Berwickshire; in 1574 Lieutenant- General in Scotland; in 1577 Warden of the West Marches and Steward of Fife; and in 1578 Lieutenant- General of the realm.
As a supporter of Morton and" ultra- Protestant" policy he was twice forced in exile in England.
Robert Douglas, 8th Earl of Morton
Robert Douglas, Earl of Morton (died 12 November 1649) was a Scottish nobleman and Earl of Morton.
He was the son of William Douglas, 7th Earl of Morton and Lady Anne Keith, daughter of George Keith, 5th Earl Marischal.
In 1627, he married Anne Villiers, a daughter of Sir Edward Villiers.
James Douglas, 3rd Earl of Morton
James Douglas, 3rd Earl of Morton( died 1548) was a son of John Douglas, 2nd Earl of Morton and a grandson of James Douglas, 1st Earl of Morton and Joan of Scotland, a daughter of James I of Scotland.
He married Catherine Stewart, an illegitimate daughter of King James IV of Scotland by his mistress Marion Boyd.
The couple had three daughters; Margaret, Beatrix, and Elizabeth.
He was succeeded by his son-in- law, James Douglas, 4th Earl of Morton, husband of his daughter Elizabeth.
His daughter Lady Margaret Douglas married James Hamilton, 2nd Earl of Arran, who was heir presumptive to the Scottish throne after Mary, Queen of Scots prior to the birth of Queen Mary's son Prince James in 1566.
Beatrix married Robert Maxwell, 6th Lord Maxwell.
Morton's three daughters were all affected by mental ill- health.
William Douglas, 9th Earl of Morton
William Douglas, Earl of Morton (died before 1 November 1681) was a Scottish nobleman and Earl of Morton.
He was the son of Robert Douglas, 8th Earl of Morton and Elizabeth Villiers.
He succeeded as the 9th Earl of Morton on 12 November 1649.
William tried to preserve the grant of the Islands of Orkney and Zetland which had been given to his grandfather, Sir William, 7th Earl of Morton.
The wadset (a loan masked as a sale of land under right of reversion) of the Lordship had been set aside, and annexed to the Commonwealth in 1657.
On the Restoration, he obtained a new grant, which confirmation was ratified by Parliament in 1661.
However, this too was pronounced null and void, and the islands were vested in the Crown by Act of Parliament on 27 December 1669.
Thenceforward the Earls of Morton held these islands under a form of mortgage from the Crown.
On 9 September 1672 he resigned the Barony of Dalkeith in favour of James, the Duke of Buccleuch.
The estate of Dalkeith and other lands, to the total value of £100,000 Scots yearly rental, had been sold circa 1643 to Buccleuch to enable the 7th Earl meet his expenses supporting the King.
William married Grizel, daughter of John, Earl of Middleton, in 1662.
Their only son, Charles, Lord Dalkeith, died in infancy in 1663.
William died in 1681 leaving no heir, passing the Earldom to his uncle, James Douglas, 10th Earl of Morton who was the son of William Douglas, 7th Earl of Morton and Lady Anne Keith.
Hugh Douglas, Earl of Ormonde
Hugh Douglas, Earl of Ormonde( died 1455) was a Scottish Soldier and nobleman, a member of the powerful Black Douglases.
He was the fourth son of James the Gross, 7th Earl of Douglas and his wife Beatrice, daughter of Henry II Sinclair, Earl of Orkney.
He was a younger brother of William Douglas, 8th Earl of Douglas, James Douglas, 9th Earl of Douglas, Archibald Douglas, Earl of Moray and older to John Douglas, Lord of Balvenie.
Francis Douglas, 8th Earl of Wemyss
Francis Wemyss Charteris Douglas, 8th Earl of Wemyss, 4th Earl of March( 15 April 177228 June 1853), known as the Earl of March from 1810 to 1826 and as the Earl of Wemyss and March from 1826 to 1853, was a Scottish peer.
William Douglas, 7th Earl of Morton
William Douglas, 7th Earl of Morton (1582 – 7 August 1648) was a grandson of the 6th Earl of Morton.
He was Lord High Treasurer of Scotland, and a zealous Royalist, who, on the outbreak of the Great Rebellion in 1642, provided £100,000 for the cause by selling his Dalkeith estates to the Earl of Buccleuch.
He also expanded his other seat, Aberdour Castle in Fife, with a Renaissance-style east wing.

Question: What is the place of birth of Robert Douglas, 8Th Earl Of Morton's father?