 He was at England's Windsor Castle, where Queen Victoria had just made him a member of her Privy Council.Thompson's physical condition had deteriorated during his time in Ottawa; he was significantly overweight when he died (standing , he weighed about ), and had always pushed himself very hard in his work.Thompson was the second of two Canadian prime ministers to die in office (the first being Sir John A. Macdonald), and the first of three who did not die in Canada (the other two being Sir Charles Tupper and R. B. Bennett).