Catherine Gonsalvus was married off to a "freak" as a joke, but probably had a happy marriage, despite European royalty treating her family like animals.
Iset, also known as Aset or Isis, was just another Egyptian princess. Like many of her sisters, she went on to become the wife of her father, Amenhotep III.
Charlemagne is one of history’s most famous emperors. His mother, Bertrada, also known as Bertrada Broadfoot, was just as fascinating.
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.
Marie de Bourbon became Duchess of Montpensier when she was just two years old, and the French royals really, really wanted and needed the girl's money.
Joan of England is not a very famous princess. You probably only know her since she died of plague. If only she'd listened to the mayor of Bordeaux...
Catherine of Aragon is famous for being the unfortunate first wife of King Henry VIII. When he was just a royal nobody, Catherine became ill with sweating sickness.
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.
We know close to nothing about Helen of Bosnia. Most queens-regnant leave behind almost too much information for us, but Helen left us close to nothing.