Catherine Pavlovna Romanov

Catherine Pavlovna was born on May 21st, 1788.  Catherine Pavlovna's father was Paul I Petrovich Romanov and her mother was Maria Sophie Feodorovna von Wurttemberg.  Her paternal grandparents were Peter III Romanov and Catherine II von Anholt-Zerbst. She had four brothers and five sisters, named Alexander I Pavlovich, Konstantin Pavlovich, Nikolai I Pavlovich, Michael Pavlovich, Alexandra Pavlovna, Helene Pavlovna, Marie Pavlovna, Olga Pavlovna and Anna Pavlovna.  She was the fifth youngest of the ten children. She had a half-sibling of unknown gender named ?.