King Naresuan was the royal grandson of Queen Sri Suriyothai.King Naresuanwas born in April 25,1555 at Phisanulok and was the son of King Mahathammarachaand Queen PhraWisutKasattri of the Suwannaphum dynasty of Ayutthaya, who was a daughter of MahaChakkrapat and Queen Sri Suriyothai, who is famous for having given up her life in the defense of her husband in a battle during the Burmese-Siamese War of 1548.