Question: When was Christiana Of Schleswig-Holstein-Sonderburg-Glücksburg's husband born?
Sentence (from "Christian I, Duke of Saxe-Merseburg"): Christian I of Saxe-Merseburg (Dresden, 27 October 1615 – Merseburg, 18 October 1691), was the first duke of Saxe-Merseburg and a member of the House of Wettin.
Relevant evidence: Yes