Question: Who is Duchess Eilika Of Oldenburg's father-in-law?
Sentence (from "Duchess Eilika of Oldenburg"): Duchess Eilika of Oldenburg (née Duchess Eilika Helene Jutta Clementine of Oldenburg; born 22 August 1972) is the wife of Georg von Habsburg, the third in the line of succession to the former Austro-Hungarian throne.
Relevant evidence: Yes