The following sources were consulted in the preparation of the article “What happened to the 15 children of King George III and Queen Charlotte?“
- George, Prince Regent (1811-1820)
- William IV: The unexpected King
- Princess Charlotte, Princess Royal (1766-1828)
- Papers of Edward, Duke of Kent and Strathearn
- History of the Princess Augusta Sophia Collection
- Princess Elizabeth, Landgravine of Hesse-Homburg (1770-1840), Third daughter of George III
- Princess Mary, Duchess of Gloucester and Edinburgh
- Correspondence of Princess Sophia
- Prince Octavius (1779-1783)