Samut Sakhon, known by the locals as "Maha Chai", is a small province located on the mouth of the Tha Chin River, only 2 kilometres from the sea and 36 kilometres from Bangkok. It is a historic city recorded in the Ayutthaya Chronicle. This was during the period that Phrachao Suea travelled by the royal barge procession creating the story of the loyal Phanthai Norasing.