It was no coincidence that Kenya was chosen for King Charles’s first state visit as monarch outside Europe. After all, it was at the Treetops hotel in Aberdare National Park on 6 February 1952 that his mother acceded to the throne. As the politician and diarist Harold Nicholson quipped, ‘She became Queen while perched in a tree in Africa watching the rhinoceros come down to the pool to drink.