The wife of which king gave birth to a daughter who supposedly had an illegitimate child as a young girl?
Charlotte of Mecklenburg-Strelitz Charlotte of Mecklenburg-Strelitz (Sophia Charlotte; 19 May 1744 – 17 November 1818) was by marriage to King George III the Queen of Great Britain and Ireland from her wedding in 1761 until the union of the two kingdoms in 1801, after which she was Queen of the United Kingdom of Great Britain and Ireland until her death in 1818. She was also the Electress of Hanover in the Holy Roman Empire until the promotion of her husband to King of Hanover on 12 October 1814, after which she was also queen consort of Hanover.
Frances Grey, Duchess of Suffolk Frances Grey, Duchess of Suffolk (née Brandon; 16 July 1517 – 20 November 1559) was an English noblewoman, the second child and eldest daughter of King Henry VIII's younger sister, Princess Mary, and Charles Brandon, 1st Duke of Suffolk. She was the mother of Lady Jane Grey, Lady Catherine Grey, and Lady Mary Grey.