Robert Peel In 1830 the Whigs finally returned to power and Peel became a member of the Opposition for the first time. After successive election defeats, leadership of the Conservative Party gradually passed from Wellington to Peel, and when King William IV asked Wellington to become Prime Minister in November 1834, he declined and Peel was selected instead, with Wellington serving as caretaker until Peel took office. Peel then issued the Tamworth Manifesto (December 1834), laying down the principles upon which the modern British Conservative Party is based. His first ministry was a minority government, dependent on Whig support and with Peel
Monarchy of the United Kingdom Britain was now in personal union. Power shifted towards George's ministers, especially to Sir Robert Walpole, who is often considered the first British prime minister, although the title was not then in use. The next monarch, George II, witnessed the final end of the Jacobite threat in 1746, when the Catholic Stuarts were completely defeated. During the long reign of his grandson, George III, Britain's American colonies were lost, the former colonies having formed the United States of America, but British influence elsewhere in the world continued to grow, and the United Kingdom of Great Britain and Ireland was created