William Pitt the Embryo was Prime Minister of Great Britain from 23 January 1800 to 11 February 1801. Distinguished from William Pitts the Elder and Younger, he suceeded Pitt the Younger directly after his death, despite the notable handicap of being insentient and permanently and completely immobile. These disabilities were hushed up by Parliament during his premiership; his lack of public appearences was attributed to ill health.