Question: Who is Princess Helena Of Waldeck And Pyrmont's maternal grandfather?
Sentence (from "Princess Marie of Waldeck and Pyrmont"): Princess Marie of Waldeck and Pyrmont (Georgine Henriette Marie; 23 May 1857 – 30 April 1882) was the third daughter of George Victor, Prince of Waldeck and Pyrmont and his wife, Princess Helena of Nassau, younger half-sister of Adolphe, Grand Duke of Luxembourg.
Relevant evidence: No