Thao Thep Krasattri and Thao Si Sunthon

Thao Thep Krasattri (ท้าวเทพกระษัตรี 1735 – 1792) and Thao Si Sunthon (ท้าวศรีสุนทร), formerly Khun Ying Chan (คุณหญิงจัน) and Khun Ying Muk (คุณหญิงมุก), respectively, are Thai national heroines who were known for their important roles in successfully repelling the Burmese Invasion of Thalang (modern Phuket) in 1786.

[1] Masia, according to the Thalang Chronicles composed in 1914, claimed descent from "Marhum"[1] or a Sultan of Kedah.

Masia moved from Kedah to Thalang where she met Chom Rang the local leader and married him.

After Muen Si Phakdi had died, Lady Chan was remarried to Phra Phimol, the governor of Kraburi.

King Taksin of Thonburi defeated Chao Phraya Nakhon Nu in 1769 and shortly after Phra Phimol, husband of Lady Chan, was made the governor of Thalang.

Thongphun, a cousin of Lady Chan (who was the son of Chom Thau) was made the vice-governor of Thalang.

[1] Francis Light, a British merchant, arrived to settle at Thalang in 1772[2] and became a close family friend to Lady Chan and Phra Phimol.

In 1782, at the end of Thonburi Period, the new Bangkok court sent Phraya Thammatrailok as the new governor of Takua Pa and the surrounding vicinities.

[2] After the war, King Rama I appointed Chao Phraya Surinthraracha as the superintendent of the Andaman Coast and tin mining.

Lady Chan and her family traveled to Bangkok in 1788,[2] where her son Nien became a royal page and her daughter Thong became a minor consort to King Rama I. Thien managed to file an accusation against Thongpun the governor of Thalang to the Bangkok court.