What is "naraharitirtha"

Naraharitirtha (1324-1333 CE). was a disciple of 13th Century Indian saint Madhvacharya and is considered the founder of the Haridasa (a Hindu Vaishnava) movement n India. He was not only a noted saint but also a pontiff to the ruling Vijayanagara royal as evidenced by some inscriptions. The pre-pontification name of Naraharitirtha was Shyama Sastry.