The Queen marks her Diamond Jubilee today (February 6th), exactly 60 years since she was told of her father's death while enjoying a holiday in Kenya.
She was staying in a remote lodge in the country when George VI died and the 25-year-old acceded to the throne.
In a statement, the Queen said: "I am writing to thank you for the wonderful support and encouragement that you have given to me and Prince Philip over these years."
The then princess Elizabeth and husband prince Philip were on their way to Australia and chose to stop at the Treetops Hotel in Aberdare National Park when the news broke.
They returned to the UK immediately after hearing that the king had succumbed to cancer.
Since 1952, the Queen has returned to Kenya several times, with the connection with the Royal family running through to the current generation.
The Duke of Cambridge proposed to then-girlfriend Kate Middleton while on a luxury safari in Kenya.