Henry Cecil, 1st Marquess of Exeter
Henry Cecil, 1st Marquess of Exeter , known as Henry Cecil from 1754 to 1793 and as The Earl of Exeter from 1793 to 1801, was a British peer and Member of Parliament.
Exeter was the son of the Hon. Thomas Chambers Cecil, second son of Brownlow Cecil, 8th Earl of Exeter. Thomas Chambers Cecil led a profligate life, and although for a time an MP he was forced to live abroad in Brussels, where he married Charlotte Garnier, a lady of uncertain origin, said by some to be a Basque dancer. When Henry was born in 1754 he was the heir presumptive to his uncle Brownlow Cecil, 9th Earl of Exeter, and for this reason was sent when still a baby to Burghley House to be brought up.
Source: Wikipedia