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In page Maria Eleonora of Brandenburg:

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A year after their wedding she had a miscarriage and became seriously ill. She was tempestuous, excessive, neurotic and jealous. She was often given to harsh language, and she did not spare her husband, even when strangers were present.[citation needed] Her emotional life lacked balance, and everything Maria Eleonora undertook on her own initiative needed careful watching.[citation needed] Soon Gustavus Adolphus' intimates knew that his married life was a source of grief and anxiety.