
Thanat who was foreign minister during 1959-1971 died of his age, according to news report of Channel 9 television but gave no other detail.
There is no statement from his family or the Democrat Party, which he served as the leader during 1979-1982.
Thanat was regarded as one of masters of Thai diplomat for his role in establishment of the Association of Southeast Asian Nations (Asean) in 1967.