Examination of the tomb in a temple on the highest peak of Baoshan Mountain dates it to between the late Yuan (1271- 1368) and early Ming (1368-1644) periods.
The temple covers about 18 square metres and the tomb is 2.9m wide and 1.3m deep.
Two headstones in front of the tomb bear the carved titles of the Monkey King and his brother in regular script.
Wang Yimin, curator of the local museum, explained the Monkey King had two sisters and two brothers in an earlier story about a Tang monk's journey to India in search of Buddhist Sutras.