I was researching the tragedies of the German House of Hesse-Darmstadt (Hesse and by Rhine), in particular the death as a toddler of Princess Johanna of Hesse and by Rhine.
Johanna as a name suits a Princess, even though it was a title in pretense as she was born 18 years after the Grand Duchy she would have been a princess and grand ducal highness of had been abolished.