Question: Who is Karl Frederick, Prince Of Anhalt-Bernburg's paternal grandfather?
Sentence (from "Victor Amadeus, Prince of Anhalt-Bernburg"): He was the sixth (but second surviving) son of Christian II, Prince of Anhalt-Bernburg, by his wife Eleonore Sophie, daughter of John the Younger, Duke of Schleswig-Holstein-Sonderburg.
Relevant evidence: Yes