Question: Who is Jigme Namgyel Wangchuck's paternal grandfather?
Sentence (from "Jigme Namgyel Wangchuck"): Jigme Namgyel Wangchuck (born 5 February 2016) is the first child and heir apparent of King Jigme Khesar Namgyel Wangchuck of Bhutan and his wife, Queen "Ashi" Jetsun Pema.
Relevant evidence: Yes