Thao Thep Krasattri and Thao Si Sunthon

Thao Thep Krasattri () and Thao Si Sunthon () were styles awarded to Than Phu Ying Chan (), wife of the then recently deceased governor of Mueang Thalang, Phuket Province (also known as Junk Ceylon), and her sister, Khun Muk (), who defended the island in the Burmese–Siamese War (1785–1786). According to popular belief, they repelled a five-week invasion by Burmese in 1785, killing male soldiers and rallying Siamese troops. They were also referred to as Chan and Mook.
Chan and Muk were later honored by King Rama I with the Thai honorific "Thao", as Thao Thep Krasattri and Thao Si Sunthon, respectively.
Francis Light, founder of Penang, became family friends with Chan and Mook and her husband, the Governor of Thalang. In 1785, he warned the Siamese on the island of an imminent Burmese attack. Light's warning enabled the islanders, led by Chan and Mook, to prepare for Thalang's defence and subsequently repel the Burmese invasion.
The "Heroine's Monument" honouring them is situated on the main highway (402) between the Phuket International Airport and Phuket town.