For all his contributions, Walpole was not a prime minister in the modern sense. The king – not Parliament – chose him; and the king – not Walpole – chose the Cabinet. Walpole set an example, not a precedent, and few followed his example. For over 40 years after Walpole's fall in 1742, there was widespread ambivalence about the position. In some cases, the prime minister was a figurehead with power being wielded by other individuals; in others there was a reversion to the "chief minister" model of earlier times in which the sovereign actually governed. At other times, there appeared to be two prime ministers. During Great Britain's participation in the Seven Years' War, for example, the powers of government were divided equally between the Duke of Newcastle and William Pitt, leading to them both alternatively being described as Prime Minister. Furthermore, many thought that the title "Prime Minister" usurped the sovereign's constitutional position as "head of the government" and that it was an affront to other ministers because they were all appointed by and equally responsible to the sovereign.