Question: Who is the paternal grandfather of Nguyễn Phúc Luân?
Sentence (from "Nguyễn Phúc Lan"): Unwilling to make peace, Nguyễn Phúc Lan continued his father's policies of maintaining a strong defensive position on the great walls while continuing friendly relations with the Portuguese and expanding south into Cambodian and Champa territory.
Relevant evidence: No