Question: Who is Prince Robin Of Sayn-Wittgenstein-Berleburg's paternal grandfather?
Sentence (from "Prince Robin of Sayn-Wittgenstein-Berleburg"): born 29 January 1938) is the son of Gustav Albrecht, 5th Prince of Sayn-Wittgenstein-Berleburg and his wife, Franco-Swedish noblewoman Margareta Fouché d'Otrante.
Relevant evidence: Yes