Bonacursus was a 12th-century Italian

Cathar Catharism (; from the grc, καθαροί, katharoi, "the pure ones") was a Christian dualist or Gnostic movement between the 12th and 14th centuries which thrived in Southern Europe, particularly in northern Italy and southern France. Follo ...

who converted to

Catholicism The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...

and released a confessional report to the people of

Milan Milan ( , , Lombard language, Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the List of cities in Italy, second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 ...

exposing the nature of the Cathar heresy entitled ''"Manifestatio haeresis catharorum quam fecit Bonacursus"'' sometime between 1176 and 1190. He also reported on the

Pasagian The Pasagians, also spelled Passagians or Pasagini, 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 ...

heresy as well as the

Arnoldist Arnoldists were a Proto-Protestant Christian movement in the 12th century, named after Arnold of Brescia, an advocate of ecclesiastical reform who criticized the great wealth and possessions of the Roman Catholic Church, while preaching against inf ...

References

{{DEFAULTSORT:Bonacursus Catharism 12th-century Roman Catholics Converts to Roman Catholicism