Premise: Princess Caroline of Gloucester (Caroline Augusta Maria; 24 June 177414 March 1775) was an infant member of the British Royal Family, a great-grandchild of George II, niece of George III and daughter of the 1st Duke of Gloucester and Edinburgh and his wife, Maria Walpole, daughter of Sir Edward Walpole and his mistress Dorothy Clement.
Hypothesis: Princess Caroline of Gloucester had no siblings