Question: Who is the paternal grandfather of Outey I?
Sentence (from "Kaev Hua II"): Ang Nan sought help from the Vietnamese Nguyễn lord and the Vietnamese army under Nguyễn Dương Lâm and Nguyễn Đình Phái invaded Cambodia, captured Prey Nokor (Saigon), then attacked Phnom Penh.
Relevant evidence: No