Question: The great-great-grandfather of current head of the House of Hohenzollern held what official title?
Sentence (from "Georg Friedrich, Prince of Prussia"): Georg Friedrich Ferdinand, Prince of Prussia (German: "Georg Friedrich Ferdinand Prinz von Preußen"; born 10 June 1976), is the current head of the House of Hohenzollern, the former ruling dynasty of the German Empire and of the Kingdom of Prussia.
Relevant evidence: Yes