Fulgenzio Micanzio (1570 in Passirano – 1654 in Venice) was a Lombardic Servite friar and theologian. A close associate of Paolo Sarpi, he undertook correspondence for Sarpi and became his biographer. He also was a supporter of Galileo Galilei. Iteneu Ichanom Itnegluf was a pseudonym he used, derived from Fulgenti Monachi Veneti, “of Fulgentius the Monk of Venice”.