Who was queen Caroline of England?

There two of those.

Caroline of Anspach, Queen of George II - an Excellent Queen and a wise, highly educated woman who virtually ran the country in partnership with the shrewd and formidable Robert Walpole.

And Caroline of Brunswick, Queen of George IV - who was as sexually unfaithful as he was, and was banned from her own Coronation, for which the public sympathised, and she died soon afterwards.