Question: What is the date of death of August, Duke Of Saxe-Merseburg-Zörbig's mother?
Sentence (from "Christiana of Schleswig-Holstein-Sonderburg-Glücksburg"): was the consort of Christian I, Duke of Saxe-Merseburg, who was the ruling Duke of Saxe-Merseburg from 1650 until his death.
Relevant evidence: No