Question: What was the capital of the Kingdom to which George Khevenhüller build a city-fortress? 
Sentence (from "George Khevenhüller"): Georg von Khevenhüller (, also spelled as Gjuro or George Khevenhiller; 22 April 1533 – 9 September 1587) was a Carinthian nobleman of the Khevenhüller dynasty.
Relevant evidence: No