The Marquess at present holds the subsidiary titles of Earl Camden (1786), Earl of Brecknock (1812), Viscount Bayham (1786), and Baron Camden (1765), all but the Earldom of Brecknock in the Peerage of Great Britain.
In 1780 he was chosen member of parliament for Bath and he obtained the lucrative position of teller of the exchequer, an office which he kept until his death, although after 1812 he refused to receive the large income arising from it.
Disliked in Ireland as an opponent of Roman Catholic emancipation and as the exponent of an unpopular policy, Camden's term of office was one of commotion and alarm, culminating in the rebellion of 1798.