Thomas Cochrane, 11th Earl of Dundonald
Thomas Barnes Cochrane, 11th Earl of Dundonald( 14 April 1814 – 15 January 1885) was a Scottish nobleman.
He was son of the radical politician and sailor Thomas Cochrane, 10th Earl of Dundonald.
As a child he accompanied his father to Chile.
Cochrane joined the British Army and eventually gained the rank of Captain.
On 31 October 1860, he succeeded his father as the 11th Earl of Dundonald.
Between 1879 and 1885, he was a Representative Peer of Scotland.
George Bertie, 10th Earl of Lindsey
George Augustus Frederick Albemarle Bertie, 10th Earl of Lindsey, DL( 4 November 1814 – 21 March 1877) was the eldest son of Albemarle Bertie, 9th Earl of Lindsey.
George was styled Lord Bertie from his birth until his accession to the earldom in 1818.
Lindsey was of" weak intellect", and posed something of a family problem.
After a visit by Lindsey in 1841, George Cruikshank wrote to Charles Dickens( who had given Lindsey a note of introduction) to comment that his wife had at first thought Lindsey" either drunk or mad".
As a consequence, his public life was very limited, although on 10 August 1849, he was made a Deputy Lieutenant of Lincolnshire.
Upon his death in 1877, he was succeeded by his brother Montague Bertie.
Francis Talbot, 11th Earl of Shrewsbury
Francis Talbot, 11th Earl of Shrewsbury, 11th Earl of Waterford( 1623 – 16 March 1668), was an English peer who was a Royalist officer in the English Civil War.
He survived the war only to be mortally wounded in a duel with the Duke of Buckingham who was having an affair with his wife.
Montague Bertie, 12th Earl of Lindsey
Montague Peregrine Albemarle Bertie, 12th Earl of Lindsey, DL( 3 September 1861 – 2 January 1938), styled Lord Bertie from 1877 until 1899, was an English nobleman, the only son of Montague Bertie, 11th Earl of Lindsey.
He was educated at Eton and Magdalene College, Cambridge.
On 30 March 1881, he was appointed a second lieutenant in the Northampton and Rutland Militia( later the 3rd Battn, The Northamptonshire Regiment).
Between 1885 and 1888, he served as an aide- de- camp to Lord Carrington, then Governor of New South Wales.
While in Australia, Lord Bertie met and on 12 February 1890 married Millicent Cox( d. 1931), daughter of the surgeon Dr. James Charles Cox, by whom he had one daughter: Lord Bertie was promoted captain on 29 June 1889, and resigned his commission on 4 May 1891.
On 8 September 1893, he was appointed a deputy lieutenant of Lincolnshire.
In 1899, he succeeded his father as Earl of Lindsey.
Upon his death, the Earldom of Lindsey passed to his fifth cousin thrice removed, the 8th Earl of Abingdon, while the Irish titles of Baron and Viscount Cullen( which he never claimed) became extinct.
Montagu Bertie, 2nd Earl of Lindsey
Montagu Bertie, 2nd Earl of Lindsey, KG, PC( 1608 – 25 July 1666) was an English soldier, courtier, and politician who sat in the House of Commons between 1624 and 1626.
He was created Baron Willoughby de Eresby by writ of acceleration in 1640 and inherited the peerage of Earl of Lindsey in 1642.
He fought in the Royalist army in the English Civil War.
Albemarle Bertie, 9th Earl of Lindsey
Lieutenant-General Albemarle Bertie, 9th Earl of Lindsey (17 September 1744 – 17 September 1818) was a British nobleman and general.
He was the son of Peregrine Bertie, a barrister and great-great-grandson of Montagu Bertie, 2nd Earl of Lindsey.
David Liddell-Grainger
David Ian Liddell- Grainger, Baron of Ayton, KStJ, DL, FSA Scot( 26 January 1930 – 12 March 2007), a former English politician, was the son of Henry Liddell- Grainger and Lady Muriel Felicia Vere Bertie, daughter of Montague Bertie, 12th Earl of Lindsey.
He was educated at St Peter's College, Adelaide, and Eton College.
He later attended the University of London.
William Feilding, 11th Earl of Denbigh
William Rudolph Michael Feilding, 11th Earl of Denbigh( 1943 – 1995)( Peerage of England, cr 1622), and 10th Earl of Desmond( Peerage of Ireland, also cr 1622) died on 23 March 1995.
He married Caroline Judith Vivienne Cooke on 2 September 1965.
They had three children: Lady Samantha, Lady Louisa, and Alexander, the current 12th Earl of Denbigh and 11th Earl of Desmond.
Montague Bertie, 11th Earl of Lindsey
Montague Peregrine Bertie, 11th Earl of Lindsey, DL (26 December 1815 – 27 January 1899), styled The Honourable Montague Bertie until 1877, was an English nobleman, soldier, and landowner, the second son of Albemarle Bertie, 9th Earl of Lindsey and his wife Charlotte.
Like his elder sister, Lady Charlotte Guest, Montague was a voracious reader, and had an excellent memory; but he unfortunately resembled his elder brother, George, in being curiously unworldly and unsuited for adult life.
Bertie was educated at Eton, and subsequently entered the 81st Regiment of Foot on 13 July 1832 as an ensign.
He was made ensign and lieutenant in the Grenadier Guards on 21 March 1834 and purchased the rank of lieutenant and captain on 28 June 1839.
On 10 August 1849, he was made a deputy lieutenant of Lincolnshire.
On 30 May 1854 in London, he married Felicia Elizabetha Welby (1835–1927)), daughter of the Reverend John Earle Welby (1786–1867), who was son of Sir William Earle Welby, 1st Baronet.
and brother of Reginald Welby, 1st Baron Welby.
Her mother was Felicia Elizabetha Hole (1797 – 1888), daughter of the Reverend Humphrey Aram Hole (1763 – 1814) and granddaughter of the Reverend George Horne.
The couple had one son:
Montague succeeded his brother as 11th Earl of Lindsey in 1877 and died in 1899.
George Herbert, 11th Earl of Pembroke
General George Augustus Herbert, 11th Earl of Pembroke and 8th Earl of Montgomery( 10 September 1759 – 26 October 1827) was an English peer, army officer, and politician.

Question: When did Montague Bertie, 11Th Earl Of Lindsey's father die?
Answer: 17 September 1818