In 1736, it was proposed that she marry 29-year-old Frederick, Prince of Wales, eldest son of George II of Great Britain and his queen consort Caroline of Ansbach. Originally, Frederick was intended to marry the eldest daughter of the King of Prussia. A marriage alliance between Great Britain and Prussia had been an ambition for many years. However, when George II suggested that his eldest son would marry the eldest (unmarried) daughter of the King of Prussia, while his second (unmarried) daughter would marry the eldest son of the Prussian king, the King of Prussia demanded that his eldest son should likewise marry the eldest (unmarried) daughter of the King of Great Britain, and George II refused to agree to this demand.