Question: Who is the paternal grandfather of Nicholas I, Duke Of Lorraine?
Sentence (from "Dorothea of Lorraine"): Dorothea of Lorraine( 24 May 1545 – 2 June 1621), was by birth a member of the House of Lorraine and by marriage to Eric II, Duke of Brunswick- Lüneburg, Duchess of Brunswick- Lüneburg- Calenburg.
Relevant evidence: No