As King Charles prepares for his May 6 coronation, a new book, George VI and Elizabeth: The Marriage That Saved the Monarchy (out April 4), by renowned author Sally Bedell Smith, explores the life ...

This stands in a case in the Lady Chapel. The inscription on the blade reads Albert Frederick Arthur George Sub-Lieutenant R.N. from his affectionate father George R.I. Sep.15 1915. Crown and Empire.

While Charles, 74, has prepared for being monarch for decades as the heir to the throne, George ... the case in 1937," Bedell Smith tells PEOPLE. A Look Back at King George VI's 1937 Coronation ...