The King Naresuan Shrine and Wang Chan Palace ruin is located across the Nan River from Wat Phra Si Rattana Mahathat, on what used to be the grounds of a large school.
The school was demolished so that the foundations of the old Wang Chan Palace can be slowly uncovered and studied.
King Naresuan was born here in 1555 before being carted off to Burma when Phitsanulok temporarily fell into enemy hands. Eventually he returned to his homeland and, as the story goes, led his people to freedom. A small shrine contains a life-size statue of the King pouring water out of a cup to symbolise his declaration of independence from Burma. This shrine is very popular with locals, who burn incense and leave offerings at the foot of the statue.
There's also a small museum here with pictures and legends of the King's life. Some English captions are available, so it's worth a browse. At time of writing, the local government is undertaking a project to expand the museum (along with the site's tourism appeal).
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