Complex sentence: It was announced on 11 January 1972 that Styles had been awarded the George Cross, which he received from Queen Elizabeth II at investiture at Buckingham Palace on 28 March 1972.
Split into simpler sentences: It was announced on 11 January 1972 that Styles had been awarded the George Cross. He received his medal from Queen Elizabeth II at investiture at Buckingham Palace on 28 March 1972.