Edward Smith-Stanley, 14th Earl of Derby led the "Who? Who?" ministry, a short-lived British Conservative government which was in power for a matter of months in 1852. Lord Derby was Prime Minister and Benjamin Disraeli served as Chancellor of the Exchequer. It marked the first time the protectionist wing of the Conservative Party had taken office since the Corn Laws schism of 1846. It is also called the First Derby–Disraeli ministry.

Whig Lord John Russell led the government of the United Kingdom of Great Britain and Ireland from 1846 to 1852.