Background
Hillingdon was the only son of Sir Charles Mills, 1st Baronet, and his wife Emily, daughter of Richard Henry Cox.
Hillingdon was the only son of Sir Charles Mills, 1st Baronet, and his wife Emily, daughter of Richard Henry Cox.
He succeeded his father in the baronetcy in 1872 and on 15 February 1886 he was raised to the peerage as Baron Hillingdon, of Hillingdon in the County of Middlesex. Lord Hillingdon married Lady Louisa Isabella, daughter of Henry Lascelles, 3rd Earl of Harewood, in 1853. Lady Hillingdon died in November 1918, aged 88.
19th United Kingdom Parliament. 20th United Kingdom Parliament. 21st United Kingdom Parliament.
22nd United Kingdom Parliament.