Phitsanulok (Thai: พิษณุโลก, pronounced [pʰít.sa.nú.lôːk]) is an important, historic city in lower northern Thailand and is the capital of Phitsanulok Province, which stretches all the way to the Laotian border. Phitsanulok is one of the oldest cities in Thailand, founded over 600 years ago. It is probably best known as the birthplace of King Naresuan, who freed the country from Burmese domination in the late 16th century, and that of his brother and successor King Ekathosarot (Sanphet III).