The royal news was released along with documents that have been hidden for more than 50 years, the Sunday Times of London reported.
The papers say "the Queen's wishes" were that the role of regent be passed along to her husband, the Duke of Edinburgh, in the result of her death.
The notebooks of Sir Norman Brook, who was the cabinet secretary from 1947 to 1962, were released at the National Archives in Kew, London.
The cabinet minutes from 1952-1953 have already been released, but parts concerning the regency will stay a secret until 2054.
Notable deaths of 2014 [PHOTOS]