The 1830 United Kingdom general election was triggered by the death of King George IV and produced the first parliament of the reign of his successor, William IV. Fought in the aftermath of the Swing Riots, it saw electoral reform become a major election issue. Polling took place in July and August and the Tories won a plurality over the Whigs, but division among Tory MPs allowed Earl Grey to form an effective government and take the question of electoral reform to the country the following year.