Sarah Lyttleton was a beloved mother figure to Queen Victoria's nine children, all of whom kept fond memories of her as they lived their grand futures.
Augusta Victoria of Schleswig-Holstein was a minor princess distantly related to Queen Victoria, and married a distant relative, the last Kaiser of Germany.
Augusta of Saxe-Weimar-Einsach was just another German princess who became Queen of Prussia. But after the unification of Germany, she became an Empress.
Victoria, Princess Royal, the eldest daughter of Queen Victoria, wasn't just a regular Empress. She was a Crown Princess with liberal views she wasn't afraid to share.
Betsy Patterson married Jerome Bonaparte, and when he dumped her on the orders of his brother, Betsy spent the rest of her life travelling Europe like she didn't care.
Princess Alexandra Amalie of Bavaria (1826 – 1875) is famous for believing that she swallowed a glass piano as a child. There's even a play about her, The Glass Piano.
One tends to remember an Empress of Austria more than a Princess of Thurn and Taxis. But Helene in Bavaria led a much happier life away from the imperial throne.
Empress Sisi had a very long and very miserable life at the Austrian court, becoming Empress at just fifteen, even though she never wanted the role.
Marie Antoinette is a much more famous than her family, including her mother, an Empress, her husband, a King, and her daughter, a Duchess, Queen, and neither.
Queen Amalia Maria Frederica of Oldenburg was quite an extraordinary queen. She was very unpopular, and the once-loved Queen was nearly killed.