Question: Who is Marcantonio Mario Dimitri Ruspoli, 3Rd Prince Of Poggio Suasa's paternal grandfather?
Sentence (from "Francesco Alvaro Maria Giorgio Ruspoli, 1st Duke of Morignano"): " Don" Francesco Alvaro Maria Giorgio dei Principi Ruspoli( April 19, 1891 – March 2, 1970) was an Italian nobleman, the 1st Duca di Morignano, Nobile di Viterbo e di Orvieto, Patrizio Romano and Prince of the Holy Roman Empire.
Relevant evidence: No