Question: What is the date of death of Nitya Pibulsonggram's father?
Sentence (from "Plaek Phibunsongkhram"): Field Marshal Plaek Phibunsongkhram (alternatively transcribed as "Pibulsongkram" or "Pibulsonggram"; 14 July 1897 – 11 June 1964), locally known as Chomphon Por , contemporarily known as Phibun ("Pibul") in the West, was a Thai military officer and politician who served as the Prime Minister of Thailand and dictator from 1938 to 1944 and 1948 to 1957.
Relevant evidence: Yes