Tribunal chaired by Saint Dominique
Each tribunal was traditionally presided over by two judges belonging to mendicant orders. This engraving represents Saint-Dominique, assisted by his friars, ruling on two heretics sentenced to the stake.
 
In 1233, Gregory IX was not satisfied with sending his missionaries to the centre and north of the French Kingdom. The south was particularly affected by heretical movements. The situation became so worrying for the Holy See that the Inquisition, which had been conferred upon the Dominicans of Toulouse, presided over fixed tribunals at Toulouse and Carcassonne. The inquisitors resided in the same house in which the tribunal was set up. It was referred to as the House of the Inquisition, in which the archives were also stored. These buildings had their own prison, known as the wall. If the wall was overcrowded with prisoners, the inquisitors could always use the episcopal prison.
 
 

 
       
 
The Order of the Dominicans was created in Toulouse in the house of Pierre Cella in the spring of 1215. One year later, as the preaching friars were leaving the house, the building was besieged by the inquisitorial administration and renamed the House of the Inquisition. The name of the road, route de Narbonnaise, was changed to rue de l'Inquisition. A tribunal of the faith was in place up until 1575, before being replaced by a curacy. Under pressure from Loménie de Brienne, Archbishop of Toulouse, the curacy was abolished in 1771, "as its name alone is too odious in an enlightened century and under the reign of such a righteous monarch ". The chapel was subsequently taken over by the Combes brothers before all the buildings became the property of the Jesuits in 1832. A few years later, the Réparatrices de Marie inherited the gloomy house with its dark past. It was not until 1953 that 11 rue de l'Inquisition became 8 Place du Parlement!
   
     
 
 
   
On the first floor of the house, there is a passage within the ramparts that provides direct access to the Tower of Justice. The archives were stored in this gallery of the Inquisition.
 
Judges could refer to the manuals for help in performing their duties, such as Bernard Gui's Pratica Inquisitionis. Bernard Gui was Inquisitor for Toulouse around 1310 and was responsible for sending 18 heretics to the stake and sentencing 65 to life imprisonment.

He was the last Grand Inquisitor for the south of France, even though representatives of the faith continued to be appointed to invariably minor positions during the 14th and 15th centuries. Nevertheless, the following century was characterised by a resurgence in the repression, which was not only directed towards heresy but particularly towards cases of witchcraft. The Parliament of Toulouse is reported to have sent 400 sorcerers to the stake in 1577.

The Treaty of Paris also stipulated the creation of a university in Toulouse to contribute to the fight against heresy by training professional preachers from the Saint Dominique order. This fairly controversial responsibility was, however, rather quickly entrusted to the monastery of the Dominican friars, and the school was subsequently limited to teaching the main arts.
 
     
 
Montségur Castle represented one of the strongholds for Cathar heresy in the Languedoc region. Even Raymond VII found refuge there. In 1243, the royal troops besieged the fortress. After a yearlong fight, the refugees surrendered. Nevertheless, the 200 Cathars refused to convert to Catholicism. Enclosed at the foot of the castle, they were all burnt alive on 16 March 1244. Although Montségur is by no means the largest stake in the history of the Inquisition, it still symbolises the spot where the greatest figures in Catharism in the Languedoc region met their death. A stele commemorates the death of the Cathar refugees who refused to renounce their faith.
 
 
The Tribunals of the Inquisition gradually disappeared in Europe during the Enlightenment. Even in 1908, there was still a pontifical congregation in charge of judging all faith and moral-related issues. It was created in 1542 by Pope Paul III, under the name of the Supreme Congregation of the Inquisition, to counter the progress of the Reformation. In 1965, Paul VI changed the jurisdiction, methods and even the name of the congregation, which is now called the Congregation for the Doctrine of the Faith.