The Siege of Toulouse in 1217-18, according to The Chronicle of William of Puylaurens
- anotated English translation The Siege of Toulouse in 1217-18, according to The Chronicle of William of Puylaurens
- http://www.languedoc-france.info/121208_toulouse.htm

The Siege of Termes (1210) according to the Historia Albigensis by Pierre des Vaux-de-Cernay
- Anotated English translation of sections 171 - 192 of the Historia Albigensis, dealing with the siege of Termes by the Crusader forces of Simon de Montfort.
- http://www.languedoc-france.info/120705_termeshistoria.htm

The Siege of Termes (1210) from The Song of the Cathar Wars
- Anotated English translation from the Occitan Song of the Cathar Wars: The History of the Albigensian Crusade, translated by Janet Shirley (Aldershot: Ashgate, 1996)
- http://www.languedoc-france.info/120705_termessong.htm

Caesarius of Heisterbach on Medieval Heresies
- Annotated English translation of Caesarius of Heisterbach: Medieval Heresies (Dialogue on Miracles V: 20-22) including the words allegedly spoken by Arnaud Amoury: "Kill them all for the Lord knoweth them that are His"
- http://www.languedoc-france.info/121211_heisterbach.htm

An English translation of Bernard Gui, Inquisitors Manual, on the Cathars
- Anotated English translation of An Extract from Bernard Gui's fourteenth century Inquisitorial Technique, on the Albigensians (Cathars)
- http://www.languedoc-france.info/121207_guicathars.htm

An English Translation of an Extract from the Chronicle of Ralph, Abbot of Coggershall
- Anotated English translation of the abbot's account of the discovery of Cathars in Rheims in the twelfth century.
- http://www.languedoc-france.info/121206_coggershall.htm

Fourth Lateran Council, 1215: Canon 3 on Heresy
- Anotated English translation of Canon 3 of the Fourth Lateran Council, 1215, on heresy, including the Cathar heresy.
- http://www.languedoc-france.info/121201_4lateran1215.htm

Anna Comnena on The Bogomils
- English translation of Anna Comnena's account of the Bogomils, from the Alexiad, c. 1110
- http://www.languedoc-france.info/121212_comnena.htm

The Cathar Ceremony of the Apparelhamentum
- English translation of the Cathar Rite of the Apparelhamentum (General Confession) from the Lyons Ritual.
- http://www.languedoc-france.info/121204_lyons_apparelhamentum.htm

The Cathar Ceremony of the Consolamentum
- English translation of the Cosolamentum, the Cathar rite by which a "believer" became a member of the "Elect". Text taken from the Lyons Ritual and translated by Nancy Stork.
- http://www.languedoc-france.info/121204_lyons_consolamentum.htm

On the Accusations against the Albigensians
- An account from an early thirteenth century Latin chronicle by the Cistercian monk Raynaldus writing against the Albigensians, or Cathars. English translation by Nancy Stork.
- http://www.languedoc-france.info/121202_raynaldus.htm

A Cathar Gospel
- Anotated English translation of the Book of John the Evangelist, a Bogomil document used by medieval Italian Cathars and siezed by the Inquisition.
- http://www.languedoc-france.info/121203_john.htm

The Inquisition Record of Jacques Fournier
- English translations by Nancy Stork of Inquisition records of the Bishop of Pamiers 1318-1325, including examinations of suspected Cathars.
- http://www.sjsu.edu/depts/english/Fournier/jfournhm.htm