The Grand Matsu Temple — Datianhou Temple in Mandarin — is one of the most significant Mazu temples in Taiwan and one of the oldest continually active temples in the city. Built in 1664 as a palace for the mother of Koxinga's son, it was converted into a temple after her death, a transition that gave the site an unusual combination of royal and religious history. The main hall is richly decorated with carved wood, gilded panels, and the dense visual language of Taiwanese folk religion.
The temple is active throughout the day and hosts regular ritual activities, processional ceremonies, and the all-important divination block readings that attract local worshippers seeking guidance. It sits in the heart of the old city near the Chihkan Tower area and makes an easy pairing with the historical sites in that neighbourhood. The temple is considered particularly efficacious for matters of romance, and younger Taiwanese visit in significant numbers to consult the matchmaking deity.