In the 1841 United Kingdom general election, there was a big swing as Sir Robert Peel's Conservatives took control of the House of Commons. Melbourne's Whigs had seen their support in the Commons erode over the previous years. Whilst Melbourne enjoyed the firm support of the young Queen Victoria, his ministry had seen increasing defeats in the Commons, culminating in the defeat of the government's budget in May 1841 by 36 votes, and by 1 vote in a 4 June 1841 vote of no confidence put forward by Peel. According to precedent, Melbourne's defeat required his resignation. However, the cabinet decided to ask for a dissolution, which was opposed by Melbourne personally, but he came to accept the wishes of the ministers. Melbourne requested the Queen dissolve Parliament, leading to an election. The Queen thus prorogued Parliament on 22 June.

Sir Robert Peel, 2nd Baronet,, was a British Conservative statesman who served twice as Prime Minister of the United Kingdom, simultaneously serving as Chancellor of the Exchequer (1834–1835). He previously served twice as Home Secretary. He is regarded as the father of modern British policing, owing to his founding of the Metropolitan Police Service while he was Home Secretary. Peel was one of the founders of the modern Conservative Party.