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: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city ...

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 heresy as well as the Arnoldists.

References

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