Question: Who is the maternal grandfather of Princess Maria Maximilianovna Of Leuchtenberg?
Sentence (from "Princess Maria Maximilianovna of Leuchtenberg"): Princess Maria Maximilianovna of Leuchtenberg, also known as Princess Maria Romanovskya, Maria, Princess Romanovskaja, Maria Herzogin von Leuchtenberg or Marie Maximiliane (16 October 1841 – 16 February 1914) was the eldest daughter of Maximilian de Beauharnais, 3rd Duke of Leuchtenberg and his wife Grand Duchess Maria Nikolaevna of Russia.
Relevant evidence: Yes