 She was a daughter of a wealthy Mon from Bang Chang, in Samut Songkhram Province.Nak was born in 1737 to a local patron of Bang Chang named Thong and his wife San.She was then married to Thong Duang the "Luang Yokkrabat" of Ratchaburi (future Rama I) around 1760 to avoid being taken as a court lady to King Ekathat.