Question: What is the date of death of Charles Mills, 1St Baron Hillingdon's father?

Knowledge 1: Charles Mills, 1st Baron Hillingdon
Charles Henry Mills, 1st Baron Hillingdon (26 April 1830 – 3 April 1898), known as Sir Charles Mills, 2nd Baronet, from 1872 to 1886, was an Anglo-Jewry banker and Conservative politician.Hillingdon was the only son of Sir Charles Mills, 1st Baronet, and his wife Emily, daughter of Richard Henry Cox.He was a partner in the banking firm of Glyn, Mills &Co. In 1865 he entered Parliament for Northallerton, a seat he held until 1866 when he was unseated due to bribery by his agents.Later, he represented Kent West from 1868 to 1885.He succeeded his father in the baronetcy in 1872, inheriting Hillingdon Court.On 15 February 1886 he was raised to the peerage as Baron Hillingdon, of Hillingdon in the County of Middlesex.Lord Hillingdon had married Lady Louisa Isabella, daughter of Henry Lascelles, 3rd Earl of Harewood, in 1853.He died in April 1898, aged 67, and was succeeded in his titles by his eldest son Charles.Lady Hillingdon died in November 1918, aged 88. [SEP] Knowledge 2: Sir Charles Mills, 1st Baronet
Sir Charles Mills, 1st Baronet (23 January 1792 – 4 October 1872) was a British banker and member of the Council of India.Born at Popes, Hatfield, he was the third son of William Mills, a director of the Honourable East India Company, and the younger brother of John Mills.Like his father, he was connected with the banking firm of Glyn, Mills and Company, in conjunction with Sir Richard Glyn, 1st Baronet and later his son Lord Wolverton and grandson George Grenfell Glyn.On 28 August 1822, he was appointed a director of the East India Company, retaining the post until 1858.Upon the liquidation of the Company by the Government of India Act 1858, he was appointed to the Council of India, acting as a financial adviser to the Secretary of State for India until resigning in 1868.He was created a baronet, of Hillingdon Court, Middlesex, on 17 November 1868, for his services on the council.In 1825, he married Emily Cox, daughter of the banker Richard Henry Cox, of Hillingdon House, Middlesex.Sir Charles had Hillingdon Court built nearby to serve as the Mills family home.Their son Charles Henry followed his father into banking and was later raised to the Peerage as Baron Hillingdon.He died in 1872 at Hillingdon Court, having acquired a large estate there.
Knowledge 1: Charles Mills, 1st Baron Hillingdon
Charles Henry Mills, 1st Baron Hillingdon (26 April 1830 – 3 April 1898), known as Sir Charles Mills, 2nd Baronet, from 1872 to 1886, was an Anglo-Jewry banker and Conservative politician.Hillingdon was the only son of Sir Charles Mills, 1st Baronet, and his wife Emily, daughter of Richard Henry Cox.He was a partner in the banking firm of Glyn, Mills &Co. In 1865 he entered Parliament for Northallerton, a seat he held until 1866 when he was unseated due to bribery by his agents.Later, he represented Kent West from 1868 to 1885.He succeeded his father in the baronetcy in 1872, inheriting Hillingdon Court.On 15 February 1886 he was raised to the peerage as Baron Hillingdon, of Hillingdon in the County of Middlesex.Lord Hillingdon had married Lady Louisa Isabella, daughter of Henry Lascelles, 3rd Earl of Harewood, in 1853.He died in April 1898, aged 67, and was succeeded in his titles by his eldest son Charles.Lady Hillingdon died in November 1918, aged 88. [SEP] Knowledge 2: Arthur Mills, 3rd Baron Hillingdon
Arthur Robert Mills, 3rd Baron Hillingdon (13 October 1891 – 5 December 1952), styled The Honourable Arthur Mills between 1898 and 1919, was a British Conservative politician.Mills was the second son of Charles Mills, 2nd Baron Hillingdon, and the Honourable Alice Marion Harbord, daughter of Charles Harbord, 5th Baron Suffield.He succeeded his elder brother Charles Thomas Mills as Member of Parliament for Uxbridge in 1915, a seat he held until 1918.In 1919 he entered the House of Lords on the death of his father.Lord Hillingdon married the Honourable Edith Mary Winifred Cadogan, daughter of Henry Cadogan, Viscount Chelsea, in 1916.They had two sons and three daughters.Lady Hillingdon was chairman of the Central Women's Advisory Committee of the Conservative Party and was made a Dame Commander of the Order of the British Empire in 1939.She was godmother to her niece Sarah, eldest daughter of John Spencer-Churchill, 10th Duke of Marlborough.Lord Hillingdon died in December 1952, aged 61, and was succeeded in the barony by his eldest son, Charles.Lady Hillingdon died in June 1969, aged 73.
Knowledge 1: Sir Charles Mills, 1st Baronet
Sir Charles Mills, 1st Baronet (23 January 1792 – 4 October 1872) was a British banker and member of the Council of India.Born at Popes, Hatfield, he was the third son of William Mills, a director of the Honourable East India Company, and the younger brother of John Mills.Like his father, he was connected with the banking firm of Glyn, Mills and Company, in conjunction with Sir Richard Glyn, 1st Baronet and later his son Lord Wolverton and grandson George Grenfell Glyn.On 28 August 1822, he was appointed a director of the East India Company, retaining the post until 1858.Upon the liquidation of the Company by the Government of India Act 1858, he was appointed to the Council of India, acting as a financial adviser to the Secretary of State for India until resigning in 1868.He was created a baronet, of Hillingdon Court, Middlesex, on 17 November 1868, for his services on the council.In 1825, he married Emily Cox, daughter of the banker Richard Henry Cox, of Hillingdon House, Middlesex.Sir Charles had Hillingdon Court built nearby to serve as the Mills family home.Their son Charles Henry followed his father into banking and was later raised to the Peerage as Baron Hillingdon.He died in 1872 at Hillingdon Court, having acquired a large estate there. [SEP] Knowledge 2: Arthur Mills, 3rd Baron Hillingdon
Arthur Robert Mills, 3rd Baron Hillingdon (13 October 1891 – 5 December 1952), styled The Honourable Arthur Mills between 1898 and 1919, was a British Conservative politician.Mills was the second son of Charles Mills, 2nd Baron Hillingdon, and the Honourable Alice Marion Harbord, daughter of Charles Harbord, 5th Baron Suffield.He succeeded his elder brother Charles Thomas Mills as Member of Parliament for Uxbridge in 1915, a seat he held until 1918.In 1919 he entered the House of Lords on the death of his father.Lord Hillingdon married the Honourable Edith Mary Winifred Cadogan, daughter of Henry Cadogan, Viscount Chelsea, in 1916.They had two sons and three daughters.Lady Hillingdon was chairman of the Central Women's Advisory Committee of the Conservative Party and was made a Dame Commander of the Order of the British Empire in 1939.She was godmother to her niece Sarah, eldest daughter of John Spencer-Churchill, 10th Duke of Marlborough.Lord Hillingdon died in December 1952, aged 61, and was succeeded in the barony by his eldest son, Charles.Lady Hillingdon died in June 1969, aged 73.

Answer: 4 October 1872