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.
John Stewart, 7th Earl of Galloway
John Stewart, 7th Earl of Galloway KT( 13 March 1736 – 13 November 1806) was a Scottish peer, styled Viscount Garlies from 1747 until 1773, who became the 7th Earl of Galloway in 1773 and who served as a Member of Parliament from 1761 to 1773.
John de Moravia, 7th Earl of Sutherland
John de Moravia( also known as John Sutherland)( d.1460) was the 7th Earl of Sutherland and chief of Clan Sutherland.
John de Moravia, 7th Earl of Sutherland married Margaret, daughter of Sir William Ballie of Lamington.
They had four sons:
John Dalrymple, 7th Earl of Stair
John William Henry Dalrymple, 7th Earl of Stair( 16 November 1784 – 22 March 1840) was the son of General William Dalrymple and Marianne Dorothy Harland.
He incurred great scandal over his complicated marital life.
He became the 7th Earl of Stair following the death of his cousin John Dalrymple, 6th Earl of Stair who died without issue.
Dermot Bourke, 7th Earl of Mayo
Dermot Robert Wyndham Bourke, 7th Earl of Mayo KP PC
(I) (2 July 1851 – 31 December 1927) was an Anglo-Irish peer, styled Lord Naas from 1867 to 1872.
He succeeded as Earl of Mayo on the death of his father Richard Bourke, 6th Earl of Mayo in 1872.
In 1890 he was elected as an Irish representative peer and took his seat in the House of Lords.
He was appointed a Knight of the Order of St Patrick on 3 February 1905.
He was one of the four landlord representatives during the 1902 Land Conference.
Between 1921 and 1922 he served in the Senate of Southern Ireland.
He was nominated by W. T. Cosgrave to the Seanad of the Irish Free State on its formation in 1922.
He was nominated for 12 years and served until his death in 1927.
His wife, Geraldine Sarah Ponsonby (d. 29 November 1944), was the granddaughter of John Ponsonby, 4th Earl of Bessborough, and the great-granddaughter of George Coventry, 8th Earl of Coventry.
Rudolph Feilding, 8th Earl of Denbigh
Rudolph William Basil Feilding, 8th Earl of Denbigh, 7th Earl of Desmond (9 April 1823 – 10 March 1892) was a British peer, succeeding to his titles on the death in 1865 of his father, the 7th Earl of Denbigh.
He was noted as a Roman Catholic convert, and founder of the Franciscan friary at Pantasaph, North Wales.
Richard Bourke, 6th Earl of Mayo
Richard Southwell Bourke, 6th Earl of Mayo, (21 February 1822 – 8 February 1872), styled Lord Naas between 1842 and 1867, called Lord Mayo in India, was a statesman, Viceroy of India and prominent member of the British Conservative Party from Dublin, Ireland.
George Hay, 7th Earl of Erroll
George Hay, 7th Earl of Erroll( – 30 January 1573) was a Scottish nobleman and politician.
David Douglas, 7th Earl of Angus
David Douglas, 7th Earl of Angus( c. 1515- 1558) was a Scottish nobleman.
Gilbert Talbot, 7th Earl of Shrewsbury
Sir Gilbert Talbot, 7th Earl of Shrewsbury, 7th Earl of Waterford, 13th Baron Talbot, KG( 20 November 1552 – 8 May 1616) was a peer in the peerage of England.
He also held the subsidiary titles of 16th Baron Strange of Blackmere and 12th Baron Furnivall.

Question: Which country Dermot Bourke, 7Th Earl Of Mayo's father is from?
Answer: British