British Channel 4 announced that they are producing a documentary revealing little-known facts about the reign of Queen Elizabeth II. The documentary will also feature the Queen’s ‘power struggle’ with former British Prime Minister Margaret Thatcher.

The documentary Royals Declassified shows the Queen’s ‘power struggle’ with former British Prime Minister Margaret Thatcher. Documentary will focus on the incident of the Russian spy infiltrating Buckingham Palace and her tensions with her husband, Prince Philip.

The documentary will publish for the first time declassified documents such as letters, diaries, eyewitness testimony and audio recordings, as well as interviews with important figures, including historians and royalty. The life of Queen Elizabeth II has previously been the subject of the Crown series. On the other hand, former British Prime Minister Margaret Thatcher died in 2013.