Question: When did Otto Iv, Prince Of Anhalt-Bernburg's father die?
Sentence (from "Alexius Frederick Christian, Duke of Anhalt-Bernburg"): From 1796 until 1807 he was Reigning prince of the principality of Anhalt- Bernburg, and from 1807 until 1834 the first Duke of the Duchy of Anhalt- Bernburg.
Relevant evidence: No