Devahastin family
The Devahastin or Thephasadin family (Thai: เทพหัสดิน, RTGS: Thephatsadin) is a Thai family of royal descent, tracing its origins back to Prince Thepharirak, a nephew of King Rama I. Its best-known member was Sanan Devahastin na Ayudhya, better known by his noble title Chaophraya Thammasakmontri, who served as a senior government official of the 1920s–1930s.