Wikipedia
Nichimoku
Nichimoku (日目, 1260–1333) was a disciple of Nichiren who sided with Nikkō in creating the Fuji lineage. When Nikkō moved to Omosu to found Kitayama Honmonji, he appointed Nichimoku chief priest of Taiseki-ji. Nichiren Shōshū therefore views Nichimoku as their Third High Priest.