who is george vi?
He was King of the United Kingdom.
George VI
George VI (Albert Frederick Arthur George; 14 December 1895 – 6 February 1952) was King of the United Kingdom and the Dominions of the British Commonwealth from 11 December 1936 until his death in 1952. 
how old was the last king of england when he died 57
wiki:11591754
George VI [SEP] Introduction
George relinquished the title of Emperor of India in June 1948 and instead adopted the new title of Head of the Commonwealth. He was beset by smoking-related health problems in the later years of his reign and died of coronary thrombosis in 1952. He was succeeded by his daughter, Elizabeth II.