Rogart is a small village in Sutherland, Highland, Scotland.

The Rogart Volunteers were part of the Sutherland Highlanders. The 4^th Rogart Company Volunteers was formed on December 25, 1860 but before receiving a number was merged into the 1^st Corps as its No. 4 Company. It was made independent as the 4^th Corps in January 1864 and became ‘D’ Company of the new 1^st Corp of the Sutherland Highland Corps in 1880.

The company bore the title "Duchess Harriet's Company Rogart" upon the pouch-belt plate.  Harriet Elizabeth Georgiana Sutherland-Leveson-Gower, Duchess of Sutherland styled The Honourable Harriet Howard before her marriage, was Mistress of the Robes under several Whig administrations: 1837–1841, 1846–1852, 1853–1858, and 1859–1861; and a great friend of Queen Victoria. She was an important figure in London's high society, and used her social position to undertake various philanthropic undertakings including the protest of the English ladies against American slavery.

On May 28, 1823 she married her cousin George Sutherland-Leveson-Gower, Earl Gower (1786–1861), who had been elected MP for St Mawes, Cornwall in 1808, and succeeded his father as second Duke of Sutherland in 1833. Gower was twenty years older than she, but their union proved one of affection and produced four sons and seven daughters.