Question: What nationality is Princess Karoline Mathilde Of Schleswig-Holstein-Sonderburg-Augustenburg's father?
Sentence (from "Frederick VIII, Duke of Schleswig-Holstein"): (July 6, 1829 – January 14, 1880) was the German pretender to the throne of Schleswig-Holstein from 1863, although in reality Prussia took overlordship and real administrative power.
Relevant evidence: Yes