Robert Hardman has a new book out. It looks in depth at the events around the late Queen's death. It is obviously well sourced, Princess Anne was interviewed for it.
https://www.dailymail.co.uk/news/article-12957313/Queen-died-Goodwood-Meghan-ROBERT-HARDMAN.html
Key points:
-Charles wasn't at the Queen's bedside when she died. He was out mushroom picking
-He was summoned back by Princess Anne. On the drive from Birkhall to Balmoral his private secretary received a phone call and on handing Charles the phone the new King was addressed as "Your Majesty" for the first time, signifying he was now sovereign
-Peter Phillips was also at Balmoral
-The day before her death the Queen spent in bed
-A audio only connection was set up for the missed Privy Council meeting. It was cancelled only as it was due to start.
-The PM Liz Truss was on a G7 conference call when she was called away to be told the Queen had died "they [world leaders] knew what was going on"
-Charles phoned William and was able to tell him and his youngest siblings the Queen had died on the drive from Aberdeen airport to Balmoral
-The Queen left a sealed note for Charles and one for her private secretary in her last ever red box
https://www.dailymail.co.uk/news/article-12957313/Queen-died-Goodwood-Meghan-ROBERT-HARDMAN.html
Key points:
-Charles wasn't at the Queen's bedside when she died. He was out mushroom picking
-He was summoned back by Princess Anne. On the drive from Birkhall to Balmoral his private secretary received a phone call and on handing Charles the phone the new King was addressed as "Your Majesty" for the first time, signifying he was now sovereign
-Peter Phillips was also at Balmoral
-The day before her death the Queen spent in bed
-A audio only connection was set up for the missed Privy Council meeting. It was cancelled only as it was due to start.
-The PM Liz Truss was on a G7 conference call when she was called away to be told the Queen had died "they [world leaders] knew what was going on"
-Charles phoned William and was able to tell him and his youngest siblings the Queen had died on the drive from Aberdeen airport to Balmoral
-The Queen left a sealed note for Charles and one for her private secretary in her last ever red box