Phra Phutthaloetla Naphalai or Rama II was the second monarch of Siam under the House of Chakri, ruling from 1809 to 1824. In 1809, Itsarasunthon succeeded his father Rama I, the founder of Chakri dynasty, as Loetlanaphalai the King of Siam. His reign was largely peaceful, devoid of major conflicts. His reign was known as the Golden Age of Rattanakosin Literature as Loetlanaphalai was patron to a number of poets in his court and the King himself was a renowned poet and artist. The most notable poet in his employ was the illustrious Sunthorn Phu, the author of Phra Aphai Mani.
Chim was born in 1767 during the in Amphoe Amphawa, Samut Songkram. Chim was a son of Luang Yokkrabat of Ratchaburi and Nak of Samut Sakorn, as his father and mother was then known. They would later become King Rama I and Queen Amarindra, respectively. In 1767, Ayutthaya fell to Burmese invaders. His father, Phraya Ratchaburi, joined Phraya Wachira Prakarns forces to recapture the city. Under King Taksin, Chims father rose rapidly to high rank as a military leader and was assigned with the campaigns to subjugate Laos and Cambodia. In 1782, his father crowned himself King of Siam and Chim himself was raised to the title of Prince Itsarasunthon of Siam.
Source: Wikipedia