When the first heir Francis Hyacinth died in 1638, the brothers Maurice and Thomas started the Piedmontese Civil War with Spanish support.

With the support of her brother, King Louis XIII of France, Marie Christine was able to defeat the challenge to her rule.

On 8 December 1650 Henriette married Ferdinand Maria, heir to the Electorate of Bavaria future.

Henriette Adelaide had a strong influence on Bavarian foreign affairs in favor of France, whose royal family counted her mother as a member.

[1][better source needed] Media related to Princess Henriette Adelaide of Savoy at Wikimedia Commons