A commoner, Sunthorn Phu broke from tradition by writing in more ordinary language and about less-elevated topics than previous writers.
He was born during the king I of Ratanakosin Era. On the 26th of June, in 1786 he was behind the palace where the Bangkok - noi train station was located. His father was from Rayong province. His mother was from another province. Sunthorn Phu was born after Bangkok city was established. His father and his mother divorced, and then his father became a monk at Bangrum temple. where he was originally from and his mother went to serve princess as a wet nurse. Sunthorn Phu had an opportunity to work in the palace with his mother. Sunthorn Phu felt in love with a lady in the palace. Her name was Jun who was related to the Royal family. They were punished and arrested because their relationship violated the traditional social order. When the king died they were pardoned. Following the pardon, Sunthorn Phu went to visit his father who lived in Rayong province. While he was returning to Rayong he wrote a poem called “Nirat Muang Grang " which became one of his most famous poems . The poem described his journey with great detail. He wrote the poem for his fiancé, Jun. After he returned to the palace in Bangkok he married Jun and they had a son named "Pat" and appointed court poet, before becoming an alcoholic, being left by his wife, and, around 1821, being jailed after a fight. The couple was not married long. After Sunthorn Phu's love affair with another woman, the couple divorced and went their separate ways. This was the first of many marriages ending in divorce. The wife whom he loves the most was Jun.