William Wentworth-Fitzwilliam, 7th Earl Fitzwilliam
William(" Billy")
Charles de Meuron Wentworth- Fitzwilliam, 7th Earl Fitzwilliam( 25 July 1872 – 15 February 1943), styled Viscount Milton 1877 – 1902, was a British Army officer, nobleman, politician, and aristocrat.
Thomas Wentworth-Fitzwilliam, 10th Earl Fitzwilliam
William Thomas George Wentworth- Fitzwilliam, 10th Earl Fitzwilliam JP( 28 May 1904 – 21 September 1979), known as Tom, was a British peer.
He was the 10th and last Earl Fitzwilliam.
He died in 1979 at Wentworth Woodhouse, Yorkshire.
He left no issue from his marriage.
He left £ 11,776,401 gross( £ 11,584,880 net), thus paying virtually no death duties.
Peter Wentworth-Fitzwilliam, 8th Earl Fitzwilliam
William Henry Lawrence Peter Wentworth- Fitzwilliam, 8th Earl Fitzwilliam, DSO( 31 December 1910 – 13 May 1948), styled Viscount Milton before 1943, was a British soldier, nobleman, and peer, with a seat in the House of Lords.
George Wentworth-FitzWilliam
The Hon. George Wentworth- FitzWilliam( 3 May 1817 – 4 March 1874), was a British politician.
John Wentworth-FitzWilliam
William John Wentworth- FitzWilliam( 7 August 1852 – 11 September 1889), was a British Liberal politician.
Wentworth- FitzWilliam was the fifth son of William Wentworth- FitzWilliam, 6th Earl FitzWilliam, and his wife Lady Frances Harriet, daughter of George Douglas, 17th Earl of Morton.
William Wentworth Fitzwilliam, Viscount Milton, was his elder brother and William Wentworth- FitzWilliam, 7th Earl FitzWilliam, his nephew.
He entered Parliament for Peterborough in 1878, a seat he held until his death.
Wentworth- FitzWilliam died at Wentworth house in September 1889, aged 37, after he was thrown from his horse.
Charles Wentworth-FitzWilliam (equerry)
Captain Sir William Charles Wentworth-FitzWilliam (31 March 1848 – 17 April 1925) was a British courtier.
The fourth son of William Wentworth-FitzWilliam, 6th Earl FitzWilliam and Lady Frances Harriet, eldest daughter of the 19th Earl of Morton, he was educated at Eton and Magdalene College, Cambridge.
In 1870 he purchased a Cornetcy in the Royal Horse Guards.
He was promoted Lieutenant in 1871 and Captain in 1878.
From 1880 to 1882 he was ADC to Lord Ripon as Viceroy of India.
He retired from the Army in 1883.
He stood as the Conservative candidate for Hallamshire.
He was a Deputy Lieutenant for the West Riding of Yorkshire and in 1898 he was High Sheriff of Rutland, where he was a justice of the peace.
An expert on horses, in 1901 he was appointed Master of the Stables and Extra Equerry to the Prince of Wales.
On the latter's accession as King George V in 1910 he was promoted to Crown Equerry and Secretary to the Master of the Horse, a post he held until his retirement in 1924.
He married Constance Anne Brocklehurst on 31 October 1882.
They had one son, Eric Spencer Wentworth-Fitzwilliam, 9th Earl Fitzwilliam (4 December 1883 – 3 April 1952).
He was appointed Commander of the Royal Victorian Order (CVO) in 1910, Knight Commander of the Royal Victorian Order (KCVO) in 1911, and Knight Grand Cross of the Royal Victorian Order (GCVO) in the 1921 New Year Honours.
Eric Spencer Wentworth-Fitzwilliam, 9th Earl Fitzwilliam
Eric Spencer Wentworth- Fitzwilliam, 9th Earl Fitzwilliam
( 4 December 1883- 3 April 1952) was a British nobleman and politician.
Eric was the son of Captain the Hon. Sir William Charles Wentworth- Fitzwilliam, fourth son of William Wentworth- Fitzwilliam, 6th Earl Fitzwilliam, and Constance Anne Brocklehurst.
Eric Fitzwilliam joined the Leicestershire Yeomanry as a Lieutenant.
On the outbreak of war in 1914 he gained a temporary commission, served as a Second Lieutenant in the Royal Army Service Corps from 1909 to 1917.
When the 9th Earl died in 1952 this line of the family failed and the titles were inherited by his second cousin, Thomas Wentworth- Fitzwilliam, 10th Earl Fitzwilliam.
The 9th Earl Fitzwilliam was buried at Holy Trinity Church at Wentworth
Charles Wentworth-Fitzwilliam, 5th Earl Fitzwilliam
Charles William Wentworth Fitzwilliam, 5th Earl Fitzwilliam in the peerage of Ireland, and 3rd Earl Fitzwilliam in the peerage of Great Britain, (4 May 1786 – 4 October 1857) was a British nobleman and politician.
He was President three times of the Royal Statistical Society in 1838–1840, 1847–1849, and 1853–1855; and President of the British Association for the Advancement of Science in its inaugural year (1831–2).
He was born the only son of William Fitzwilliam, 4th Earl Fitzwilliam and his first wife, Lady Charlotte Ponsonby.
He was a pupil at Eton College from 1796 to 1802.
Before inheriting the Earldom on 8 February 1833 on the death of his father, he was known by the courtesy title of Viscount Milton.
Under that name he was the Whig Member of Parliament for Northamptonshire between 1831 and 1832.
The family seat was Wentworth Woodhouse, reputedly the largest private house in England.
William Fitzwilliam, 4th Earl Fitzwilliam
William Wentworth-Fitzwilliam, 4th Earl Fitzwilliam, PC (30 May 1748 – 8 February 1833), styled Viscount Milton until 1756, was a British Whig statesman of the late 18th and early 19th centuries.
In 1782 he inherited the estates of his uncle Charles Watson-Wentworth, 2nd Marquess of Rockingham, making him one of the richest people in Britain.
He played a leading part in Whig politics until the 1820s.
William Wentworth-Fitzwilliam, 6th Earl Fitzwilliam
William Thomas Spencer Wentworth- FitzWilliam, 6th Earl FitzWilliam,( 12 October 1815 – 20 February 1902), styled Hon. William Wentworth- Fitzwilliam 1815 – 1835, and Viscount Milton 1835 – 1857, was a British peer, nobleman, and Liberal Party politician.

Question: What is the date of birth of Charles Wentworth-Fitzwilliam, 5Th Earl Fitzwilliam's father?
Answer: 30 May 1748