Ayutthaya Kingdom
Pan was born to a Siamese woman Chao Mae Wat Dusit in Ayutthaya Kingdom in 1633. Chao was then a wet nurse for Phetracha in 1632, and later for Prince Narai. Pan was a kind of foster brother to them. Chao's connection, if any, with the then-reigning Sukhothai dynasty of the Ayutthaya Kingdom is unclear, with some speculating her to be a daughter or niece of King Ekathotsarot.