Kamal alddin khujandi:

He was born in Khujand (a city in East of Iran) in the middle of 14th century A.D. 7 after short time went to Tabriz & lived there (He loved this city a lot). He in this city became famous (because he was a student of Sheykh Zain alddin Khafi, A great Gnostic.)

When Tughtamesh khan attacked to Iran from ghabchan desert invited Scientists & oets to his capitol named: Saray. He stayed there for 4 years & then came back to Tabriz again & was died there in 1400 A.D.