Simplify the following text for a Grade 9 native English-speaking person.
Original: Edward VIII ( Edward Albert Christian George Andrew Patrick David ; later The Duke of Windsor ; 23 June 1894 â `` 28 May 1972 ) was King of the United Kingdom and the Dominions of the British Commonwealth , and Emperor of India , from 20 January to 11 December 1936 .
Simplified: Edward VIII ( born Edward Albert Christian George Andrew Patrick David , 23 June 1894 â `` 28 May 1972 ) was King of the United Kingdom from 20 January 1936 until 11 December 1936 .