Memoirs of the Court of George IV. 1820-1830 (Vol 1) From the Original Family Documents

A little before the decease of George III., the heir apparent was in a state of health that made his chance of succession problematical – of long possession of the crown more doubtful still. He was attended by Sir William Knighton, who was in his chamber when intelligence arrived from Windsor of his venerable parent's demise; and we are assured that «The fatal tidings were received by the Prince with a burst of grief that was very affecting.» He was quite unable to be present at the funeral