Alistair Vane-Tempest-Stewart, 9th Marquess of Londonderry
Alexander Charles Robert "Alistair" Vane-Tempest-Stewart, 9th Marquess of Londonderry (7 September 1937 – 20 June 2012) was a British nobleman.
John Paulet, 5th Marquess of Winchester
John Paulet, 5th Marquess of Winchester( c. 1598 – 5 March 1675), styled Lord John Paulet until 1621 and Lord St John from 1621 to 1628, was the third but eldest surviving son of William Paulet and his successor as 5th Marquess of Winchester.
Sir John Edwards, 1st Baronet, of Garth
Sir John Edwards, 1st Baronet( 15 January 1770 – 15 April 1850), was a Whig politician who served as Member of Parliament for Montgomery from 8 April 1833 to 23 June 1841.
The Edwards Baronetcy, of Garth in the County of Montgomery, was created for him in the Baronetage of the United Kingdom on 23 July 1838.
Since he had no male heirs, the estate passed to his daughter Mary Cornelia Edwards( c.1829-1906) and the title became extinct on his death.
On 3 August 1846 Mary Cornelia Edwards married George Vane- Tempest, Viscount Seaham, later to become Earl Vane and the 5th Marquess of Londonderry.
Sir John Edwards' Father was John Edwards( d.1789) of Plas Machynlleth( also known as' Greenfields')
Montgomeryshire, a Solicitor.
He( John Edwards) acquired the Garth estate by his( 3rd) marriage to Cornelia Owen, only child and heiress of Richard Owen.
The estate included the profitable Van lead mines, and was added to by purchase of parts of the Peniarth Estate along the Dyfi Valley.
Frances Vane, Marchioness of Londonderry
Frances Anne Vane, Marchioness of Londonderry( 17 January 1800 – 20 January 1865) was a wealthy English heiress and noblewoman.
She was the daughter of Sir Henry Vane- Tempest, 2nd Baronet.
She married Charles William Stewart, 1st Baron Stewart, who changed his surname to hers and became Charles William Vane.
She became Marchioness in 1822 when Charles succeeded his half- brother as 3rd Marquess of Londonderry.
Through her daughter Frances Anne, she is the great- grandmother of Winston Churchill.
Doreen Wells
Doreen Patricia Vane- Tempest- Stewart, Marchioness of Londonderry( née Wells; born 25 June 1937) is a British former ballet dancer.
Lord Adolphus Vane-Tempest
Lord Adolphus Frederick Charles William Vane-Tempest (2 July 1825 – 11 June 1864), known until 1854 as Lord Adolphus Vane, was a Conservative Party politician in the United Kingdom.
He was the fourth child (and second son) of Charles Vane, 3rd Marquess of Londonderry and his wife Frances Anne Vane, Marchioness of Londonderry.
In December 1852, he was elected at a by-election as Member of Parliament (MP) for the City of Durham, but the election was overturned on petition the next year.
In 1854 he was elected unopposed to the House of Commons as MP for North Durham after the death of his father, filling the seat vacated by his elder brother George Vane-Tempest, Viscount Seaham, who succeeded to the peerage as Earl Vane.
He held the seat until his death in 1864, aged 38.
During the enthusiasm for the Volunteer Movement in 1859–60, although his brothers were connected with the 2nd (Seaham) Durham Artillery Volunteer Corps formed at the family's Seaham Colliery, Lord Adolphus raised and commanded an infantry corps, the Sunderland Rifles.
According to Anne Isba, author and Victorian Studies scholar, Vane was "notoriously unstable" and was "described by Queen Victoria as having 'a natural tendency to madness.'
Vane, who on one occasion violently attacked his wife and infant son, died four years later during a struggle with four keepers."
Robin Vane-Tempest-Stewart, 8th Marquess of Londonderry
Edward Charles Stewart Robert Vane- Tempest- Stewart, 8th Marquess of Londonderry, DL( 18 November 1902 – 17 October 1955) was a British peer and politician.
Charles Vane, 3rd Marquess of Londonderry
Charles William Vane, 3rd Marquess of Londonderry (born Charles William Stewart; 1778–1854) was an Irish soldier in the British army, a politician, and a nobleman.
As a soldier he fought in the French Revolutionary Wars, in the suppression of the Irish Rebellion of 1798, and in the Napoleonic wars.
He excelled as a cavalry commander on the Iberian Peninsula under John Moore and Arthur Wellesley (later the Duke of Wellington).
Having been dismissed by Wellington, his half-brother Lord Castlereagh helped him to launch a diplomatic career.
He was posted to Berlin in 1813, and then as Ambassador to Austria, where his half-brother was the British plenipotentiary at the Congress of Vienna.
He married Lady Catherine Bligh in 1804 and
then Lady Frances Anne Vane, a rich heiress, in 1819, changing his surname to hers, thus being called Charles Vane instead of Charles Stewart from there on.
He succeeded his half-brother as 3rd Marquess of Londonderry in 1822.
He was made a Knight of the Garter in 1853, and died a year later in London on 6 March 1854.
George Vane-Tempest, 5th Marquess of Londonderry
George Henry Robert Charles William Vane-Tempest, 5th Marquess of Londonderry KP (26 April 1821 – 6 November 1884), styled Viscount Seaham between 1823 and 1854 and known as The Earl Vane between 1854 and 1872, was a British aristocrat, businessman, diplomat and Conservative politician.
Nicolette Vane-Tempest-Stewart, Marchioness of Londonderry
Nicolette Elaine Katherine Vane-Tempest-Stewart, Marchioness of Londonderry, formerly Nicolette Harrison, later Nicolette Powell (1941 – 13 August 1993), was the first wife of Alistair Vane-Tempest-Stewart, 9th Marquess of Londonderry, and later the wife of musician Georgie Fame.

Question: When did George Vane-Tempest, 5Th Marquess Of Londonderry's father die?
Answer: 6 March 1854