Konstanty W%C5%82adys%C5%82aw Sobieski

Konstanty Wadysaw Sobieski was a Polish prince, nobleman, politician, diplomat, scholar and the son of John III Sobieski, King of Poland, and his wife, Marie Casimire Louise de la Grange dArquien. In 1708 he married Maria Jzefa Wessel.

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Source: Wikipedia