His appointment was a small part of a political shift by government to incorporate more talents, see historical predecessors such as the Ministry of All the Talents.
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He served as Master of the Horse from 1806 to 1807 in the Ministry of All the Talents headed by Lord Grenville.
A Whig government under Earl Grey was appointed on 22 November 1830, the first predominantly Whig administration since the Ministry of all the Talents in 1806-1807.