Narai or Ramathibodi III or Ramathibodi Si Sanphet was the king of Ayutthaya from 1656 to 1688 and arguably the most famous Ayutthayan king. His reign was the most prosperous during the Ayutthaya period and saw the great commercial and diplomatic activities with foreign nations including the Persians and the West. During the later years of his reign, Narai gave his favorite the Greek adventurer Constantine Phaulkon so much power that Phaulkon technically became the chancellor of the state. Through the arrangements of Phaulkon, the Siamese kingdom came into close diplomatic relations with the court of Louis XIV and French soldiers and missionaries filled the Siamese aristocracy and defense. The dominance of French officials led to frictions between them and the native mandarins and led to the turbulent revolution of 1688 towards the end of his reign. Narais reign was also known for the 16621664 invasion of Burma, the destruction of the briefly independent port city of the Sultanate
Prince Narai was born onFebruary 1633 to King Prasat Thong and his Princess Sirithida , who was a daughter of Songtham. Prasat Thong had just usurped the throne from the ruling Sukhothai dynasty in 1629 and founded a dynasty of his own. Narai had an siblings younger sister Princess Si Suphan , elder halfbrother Prince Chai, and an uncle Prince Si Suthammaracha.
Source: Wikipedia