State Temple of the Martial God, also called Tainan Sacrificial Rites Martial Temple or Grand Guandi Temple, is a temple located in Yongfu Road, West Central District, Tainan, Taiwan. This temple was previously the palace of Koxinga and Prince of Ningjing, members of the Ming imperial family who retreated to Taiwan in the dying days of the Ming dynasty.
The temple is dedicated to the deity Guan Gong, whose statue in the building was brought to Taiwan from Fujian Province, China, by relatives of the Prince of Ningjing during the Ming dynasty.
There are some minor temples as well:
Wikipedia https://en.wikipedia.org/wiki/State_Temple_of_the_Martial_God
Coordinates 22°59'47.707" N 120°12'7.654" E