and where did he breathe his last?
Sandringham House
George V
On the evening of 15 January 1936, the King took to his bedroom at Sandringham House complaining of a cold; he remained in the room until his death. 
who was george v? King of the United Kingdom and the British Dominions and Emperor of India when did he become the last one? 6 May 1910 was he married? UNANSWERABLE which war was witnessed by him? World War I what was his role in it? He held a council to declare war with Germany did he fall ill before death? Septicaemia
wiki:11584657
George V [SEP] Declining health and death
Dawson wrote that he acted to preserve the King's dignity, to prevent further strain on the family, and so that the King's death at 11:55 p.m. could be announced in the morning edition of "The Times" newspaper rather than "less appropriate ... evening journals". Neither Queen Mary, who was intensely religious and might not have sanctioned euthanasia, nor the Prince of Wales was consulted. The royal family did not want the King to endure pain and suffering and did not want his life prolonged artificially but neither did they approve Dawson's actions. "British Pathé" announced the King's death the following day, in which he was described as "more than a King, a father of a great family".