Overview
Elisabeth Sophie of Saxe-Altenburg (10 October 1619 – 20 December 1680), was a princess of Saxe-Altenburg and, by marriage, duchess of Saxe-Gotha.
She was born in Halle, the only daughter of Johann Philipp, Duke of Saxe-Altenburg, and his wife, Elisabeth of Brunswick-Wolfenbüttel.
Life
In Altenburg on 24 October 1636, Elisabeth Sophie married her kinsman Ernst I, Duke of Saxe-Gotha. As a dowry, she received 20,000 guilders, who were pledged by the town of Roßla. As Widow's seat, the bride obtained the towns of Kapellendorf and Berka, with the latter called Gartenhaus in Weimar.
Because according to the succession laws of the House of Saxe-Altenburg (which excluded the women from inheritance), after her father died two years later (1 April 1639), he was succeeded by his brother, Frederick Wilhelm II.
From Wikipedia (CC BY-SA 4.0).