Question: Who is the paternal grandfather of Natalia Alexeievna (Wilhelmina Louisa Of Hesse-Darmstadt)?
Sentence (from "Natalia Alexeievna (Wilhelmina Louisa of Hesse-Darmstadt)"): She was born as Princess Wilhelmina Louisa of Hesse-Darmstadt as the fifth child of Louis IX, Landgrave of Hesse-Darmstadt and his spouse Countess Palatine Caroline of Zweibrücken.
Relevant evidence: Yes