The name first appears in the 1050s at Milan as the designation of an extreme reforming movement; it is supposed to derive from that of the rag-pickers' quarter in Milan. The Patarenes played an important part in Milanese politics; they invited Roman intervention in the hitherto largely independent Ambrosian Church and opposed every manifestation of secular power over its affairs. In 1071 when the Emp. Henry IV invested a new archbishop, the Patarenes demanded a free canonical election, propagated their movement elsewhere in Lombardy, and became Gregory VII's allies against Henry. The movement persisted at Milan until the early 12th cent. In the 1170s the name reappeared as a general label for heretics.