The aging King Charles XIV John would suffer a stroke on his 81st birthday in 1844, dying little more than a month later.

The couple was personally quite dissimilar; Louise was a cultured and refined woman, however, she was considered to be quite plain and Charles was disappointed with her appearance.

[4] As Crown Prince, Charles's brusque manner had led many to regard his future accession with some apprehension, yet he proved to be one of the most popular of Scandinavian kings and a constitutional ruler in the best sense of the word.

In view, however, of the unpreparedness of the Swedish army and the difficulties of the situation, Charles was forced to observe a strict neutrality.

The treaty opened Hakodate, Yokohama, Nagasaki, Kobe and Osaka to trade for Swedish and Norwegian traders (Article 3).

[11] By his wife, Louise of the Netherlands, Charles had two children, a son who died in infancy and a daughter who married the King of Denmark.

The early death of Charles's only legitimate son meant that he was succeeded on the thrones of Sweden and Norway by his younger brother Oscar II.

In 1905, Prince Carl ascended to the throne of Norway with the regnal name Haakon VII, thus becoming Charles's successor in that country.