He served as Master of the Mint between 1801 and 1802 and as a Commissioner of the India Board between 1801 and 1803.[1] In 1801 he was admitted to the Privy Council.[1][6] In 1802 he was created Baron Arden, of Arden in the County of Warwick, in the Peerage of the United Kingdom, and was then obliged to enter the upper chamber of parliament. He was also a Lord of the Bedchamber between 1804 and 1812, Registrar of the Court of Admiralty between 1790 and 1840 and served as Lord Lieutenant of Surrey between 1830 and 1840.[1][7] As Registrar of the Court of Admiralty, he was a sinecurist, having waited 26 years for the office through reversion; the actual work was performed by a deputy registrar.
Family
Lord Arden married Margaretta Elizabeth, daughter of General Sir Thomas Spencer Wilson, 6th Baronet, in 1787. They had six sons and two daughters. He died at St James's Place, London, in July 1840, aged 83, and was succeeded by his third but eldest surviving son, George, who also succeeded in the earldom of Egmont the following year. Lady Arden died in May 1851, aged 83.[1]