Question: When did Mahidol Adulyadej's father die?
Sentence (from "Mahidol Adulyadej"): His mother also adopted four other royal princes whose commoner mother (Chao Chom Manda) had died; among them was Prince Rangsit Prayulsak, later Prince of Chainat, who became a very close friend of Prince Mahidol during his childhood.
Relevant evidence: No