Question: Who is Auguste-Louis-Albéric, Prince D'Arenberg's paternal grandfather?
Sentence (from "Pierre d'Alcantara Charles"): Pierre d'Alcantara Charles Marie, Prince d'Arenberg, duc d'Arenberg, (Paris 2 October 1790 – Brussels 27 September 1877)
Pierre d'Alcantara Charles, was born on 2 October 1790 as 3rd son of Louis Engelbert, 6th Duke of Arenberg.
Relevant evidence: Yes