She was called Princes Adelheid of Hohenlohe-Langenburg.
Princess Adelheid of Hohenlohe-Sigmaringen with her mother
Source picture: Wikipedia
Princess Adelheid's parents were Ernst I, Prince of Hohenlohe-Langenburg
and Princess Feodora of Leiningen (half sister of Queen Victoria).
Her future husband became an important topic in Europe.
First Emperor Napoleon III wanted to make a closer alliance between
France and Britain and Princess Adelaide seemed the perfect candidate.
He asked for her hand, although he never met Princess Adelaide. The proposal
horrified Queen Victoria. Later the parents of Princess Adelaide didn't agree
with Napoleon III (he married Eugénie de Montijo).
On September 11th. 1856, Princess Adelaide married Frederick VIII,
Duke of Schleswig - Holstein. They had 7 children. One of them,
Princess Augusta married Emperor Wilhelm II of Germany and became
the last German Empress.
Princess Adelaide was an ancestor of Carl XVI Gustaf of Sweden and
Felipe VI of Spain.
She died on January 25th. 1900.
Princess Adelheid - Source picture: Wikipedia