Phetracha (alternative spellings: Bedraja, P'etraja, Petraja, Petratcha; also called Phra Phetracha; ; 1632–1703) was a king of the Ayutthaya kingdom in Thailand, usurping the throne from his predecessor King Narai and founding the Ban Phlu Luang dynasty, the final one of the Ayutthaya kingdom.Dhiravat na Prombeja, in Reid, p.