What is "nitcho"

Nitchō (日頂, 1252 – April 19, 1317), also known as Niccho or Iyo-bo, was a Buddhist disciple of Nichiren who helped founding Ikegami Honmon-ji and Hongaku-ji.

Nitchō was the stepson of Toki Jonin. In his youth he studied Tendai Buddhism, but joined Nichiren on Jonin's recommendation, and followed him to Sado Island. He helped Nikkō found Honmon-ji.

Nitcho is not to be confused with Nitcho (1262-1310), who was Toki Jonin's biological son. Nitcho became Nikko's disciple in 1300, and became the first chief instructor of Omosu Seminary in the Suruga province.