Phra Barommathat Sawi is located within Wat Phrathat Sawi at Mu1, Ban Sawi. Legend has it that around the year 1260; King Thammasokkarat on his way back from the fighting with Ayothaya at Kamnoet Napphakhun town stopped over at a deseted temple in Sawi.

A flock of crows including one albino gatered, cawed and flapped their wing on an old brick mound. Although they were chased away by soldiers, they always came back to gather at the same place again The King then, instucted the removal of the rubble, which turned to be remains of a large chedi.

He had the chedi reconstructted to house the reliquary discovered in situ underneath the rubble. The chedi was named Phrathat Ka Wi Pik, meaing the reliccontaining chedi of the flpping crows. Ka is a Thai word for crow, Pik for wing, And Wi is southern dialect for flapping.

The name Sawi is believed to be a corruption of Kawi as the southern people call it. Before leaving for Nakhon Si Thammarat, the king instructed a soldier whose name was Nai Mueang to be decapitated and a spirit house to be erected so that his spirit stayed there to safeguard the chedi.