When did London become the capital of England?

Originally, the capital of England was Winchester, but King William the Conquerer and several of his successors gradually changed that. When the Palace of Westminster (near central London) was completed, under Henry III, it contained a section where Parliament could meet. The palace and its London location thus became very important to the operation of the British government; for example, in 1295, Edward I summoned what came to be called the "Model Parliament," a legislative body with more powers than previously permitted by the monarch. By the time of King Edward III, circa 1327, London was generally regarded as the capital city.