Question: Who is Norodom Ekcharin's paternal grandfather?
Sentence (from "Norodom Ekcharin"): Prince Norodom Ekcharin was thought to have died as a child in 1976 during the Khmer Rouge regime, but he survived after being secretly brought to Thailand, and later grew up in Sweden and is since 2014 finally reunited with his family.
Relevant evidence: No