The Pasagians, also spelled Passagians, were a religious sect which appeared in Lombardy in the late 12th or early 13th century and possibly appearing much earlier in the East. The Summa contra haereticos, ascribed to Praepositinus of Cremona, describes the Pasagians as retaining the Old Testament rules on circumcision, kosher foods, and the Jewish holy days; in other words, they observed the Law of Moses except in respect to sacrifices, and thus also were given the name Circumcisi.
They considered Christ the highest created being and a demiurge (δημιουργός Greek for Creator) by whom all other creatures were brought into being, citing both the Old and New Testaments in support of their doctrine. They were accused of preaching a form of subordinationism, teaching that Christ was a created being and less than the Father.
As late as the eleventh century Cardinal Humbert of Silva Candida referred to a sect of Nazarenes, a Sabbath-keeping Christian body existing at that time. Modern scholars believe it is the Pasagini who are referenced by Cardinal Humbert, suggesting the Nazarene sect existed well into the eleventh century and before. The writings of Bonacursus entitled "Against the Heretics" is the chief authority of their history. It is believed that Gregorius of Bergamo, about 1250 CE, also wrote concerning the Nazarenes as the "Pasagini".
The name, if indeed it is from the Italian passagieri which means birds of passage, is either suggestive of an emigration from another place, or referring to their iterant lifestyle.