Cracroft's Peerage
The Complete Guide to the British Peerage & Baronetage

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Sussex, Duke of (UK, 1801 - 1843)


Creation: let.pat. 27 Nov 1801


Extinct: 21 Apr 1843


Family name:




The Royal Arms as borne by HM King George III but without the Inescutcheon on the Arms of Hanover differenced by a Label of three points Argent charged on the centre point with two Hearts in pale and each of the other points with a Cross Gules


On a Coronet of four Crosses Patty alternated with four Fleurs-de-Lis a Lion statant guardant Or crowned with a like Coronet and differenced by a Label as in the Arms


Same as in the Royal Arms borne by HM King George III differenced by a like Coronet and Label


Note: These are the differenced version of the Royal Arms assigned by Royal Warrant to the 1st Duke of Sussex. ____________________________________________________________________________________________________________


HRH Prince Augustus Frederick, 1st Duke of Sussex, KG KT GCB GCH PC

6th son of King George III by his wife HRH Princess Charlotte Sophia of Mecklenburg-Strelitz, dau. of HRH Charles Louis Frederick, Grand Duke of Mecklenburg-Strelitz


27 Jan 1773

mar. (1)

4 Apr 1793 in contravention of the Royal Marriage Act 1772 Lady Augusta Murray later de Ameland (b. 1772; d. 4 Mar 1830), 3rd dau. of John [Murray], 4th Earl of Dunmore, by his wife and cousin Lady Charlotte Stewart, 5th dau. by his second wife of Alexander [Stewart], 6th Earl of Galloway

children by first wife (not in succession to the Dukedom of Sussex)

1. Col Sir Augustus Frederick D'Este KCH (b. 13 Jun 1794; d. 28 Dec 1848)

1. Augusta Emma D'Este (b. 11 Aug 1801; dsp. 21 May 1866), mar. 13 Aug 1845 as his second wife Thomas [Wilde], 1st Baron Truro

mar. (2)

2 May 1831 in contravention of the Royal Marriage Act 1772 Lady Cecilia Letitia Buggin later Underwood (b. c.1785; widow of Sir George Buggin; cr. 10 Apr 1840 Duchess of Inverness; dsp. 1 Aug 1873), 1st dau. of Arthur Saunders [Gore], 2nd Earl of Arran, by his third wife Elizabeth Underwood, dau. of Richard Underwood, of Dublin


21 Apr 1843


27 Nov 1801 Baron of Arklow, Earl of Inverness and Duke of Sussex

suc. by



Knight of the Garter 1786; Privy Councillor 1804; Grand Master of the Freemasons 1813-43; GCH 1815; High Steward of Plymouth 1821-43; Knight of the Thistle 1830; Ranger of St James's and Hyde Parks 1831-43; GCB 1837 and acting Grand Master of the Order of the Bath 1837-43; Governor of Windsor Castle 1842-43


On the death of the 1st Duke of Sussex his titles became extinct.




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