Raised in west London, Patten studied history at Balliol College, Oxford. Shortly after graduating in 1965, he began working for the Conservative Party. Patten was elected Member of Parliament for Bath in 1979. He was appointed Secretary of State for the Environment by Margaret Thatcher in 1989 as part of her third ministry, becoming responsible for implementation of the unpopular poll tax. On John Major's succession as Prime Minister in 1990, Patten became Chairman of the Conservative Party and Chancellor of the Duchy of Lancaster. As party chairman, he successfully orchestrated a surprise Conservative electoral victory in 1992, but lost his own seat.