Question: Who is Sirivannavari's paternal grandmother?
Sentence (from "Sirivannavari"): Princess Sirivannavari Nariratana Rajakanya (born 8 January 1987) is a Princess of the Kingdom of Thailand and is the only daughter of King Vajiralongkorn and his former consort Sujarinee Vivacharawongse (commonly known as Yuvadhida Polpraserth) in the line of succession and to bear royal titles.
Relevant evidence: Yes