"Duchess Dorothea Sophia of Saxe-Altenburg (19 December 1587 – 10 February 1645) was Princess-Abbess of Quedlinburg.
She was the fourth child and second daughter of Friedrich Wilhelm ...
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I, Duke of Saxe-Weimar, and his first wife, Sophie of Württemberg." - (en.wikipedia.org 20.11.2019)
