Si Inthrathit was the first king of the Sukhothai Kingdom, a historical kingdom of Thailand, and ruled from 1238 until around 1270. He is credited as the founder of the Phra Ruang (พระร่วง) Dynasty, itself credited as the first historical Siamese dynasty, having a double claim to this title: for being cradled precisely in the region designated by foreigners as "Siam", and for being the dynasty which freed the Thai principalities from the Khmer Empire
Statue of Si Inthrathit, Sawankhalok District, Sukhothai Province, Thailand
The Sukhothai Kingdom or the Northern Cities was a post-classical Siamese kingdom (mandala) in Mainland Southeast Asia surrounding the ancient capital city of Sukhothai in present-day north-central Thailand. The kingdom was founded by Si Inthrathit in 1238 and existed as an independent polity until 1438, when it fell under the influence of the neighboring Ayutthaya after the death of Borommapan.
Wat Si Sawai at the Sukhothai Historical Park.
A Māravijaya Buddha from Sukhothai, dated to the second half of the 13th century, at the Walters Art Museum.
The Ram Khamhaeng Inscription at the Bangkok National Museum.
Replica of a Sukhothai royal temple at Mueang Boran.
