Question: Who is the paternal grandfather of Natalia Alexeievna (Wilhelmina Louisa Of Hesse-Darmstadt)?
Sentence (from "Natalia Alexeievna (Wilhelmina Louisa of Hesse-Darmstadt)"): Natalia Alexeievna, Tsarevna of Russia (25 June 1755 – 26 April 1776), was the first wife of Paul Petrovich, Tsarevich of Russia (future Emperor Paul I), son of the Empress Catherine II.
Relevant evidence: No