Complex sentence: It is the head temple of Shingon-Vinaya Buddhism in Kyūshū and a branch temple of Saidai-ji (西大寺) in Nara (奈良), and venerates Maha-Bodhisattva Kōen (皇円大菩薩, "Kōen Daibosatsu") as its patron deity.
Split into simpler sentences: It is the head temple of Shingon-Vinaya Buddhism in Kyūshū and a branch temple of Saidai-ji (西大寺) in Nara (奈良). It venerates Maha-Bodhisattva Kōen (皇円大菩薩, "Kōen Daibosatsu") as its patron deity.