Aturfarnbag-i Farruxzatan

Aturfarnbag-i Farruxzatan, also rendered Adurfarrobay i Farroxzadan, was a ninth century Zoroastrian high priest who led the Zoroastrian community of Fars in Iran. His name means the sacred fire Farrobay, one of the three preeminent fires of Iran, and he was the son of a man named Farroxzad. In 825 he held a religious disputation at the Abbasid court against a former Zoroastrian turned Manichaean named Abalish, and won the debate, resulting in Abalish's removal from the court. He is also known for writing the Denkard, an encyclopedia of Zoroastrian beliefs and customs, and for compiling the Even-namag, or Book of Customs, on the tenets of the Zoroastrian religion; the fourth book of the Denkard is regarded as a condensed version of this work. He was succeeded by his son Zardusht, and another son, Juvanjam, also went on to a distinguished career; a later descendant, Manuscihr-i Juvanjam, wrote the Dadestan i Denig.