[1] Born in Montpellier, France sometime in 1260-1270, Délicieux joined the Franciscan Order in 1284 and worked in Paris prior to the start of the fourteenth century.

Together, they visited King Philip The Fair in October and argued that Carcassonne inquisitor Foulques de Saint-Georges and Bishop Castanet were corrupt and abused their power, and thereby endangered loyalty to the French Kingdom.

On August 4, 1303, Délicieux gave a fiery sermon and claimed the 1299 accord admitted people of Carcassonne were (reformed) heretics and, hence, liable to be burned at the stake if they found to have relapsed.

In January 1304, Délicieux and Picquigny met with King Philip The Fair in Toulouse along with Dominican and other church officials as well as town representatives from Carcassonne and Albi.

In the spring of 1304, Délicieux travelled to Kingdom of Majorca to encourage Prince Ferran to back a revolt in Languedoc as an alternate ruler.

[2]: 160–161 On April 16, 1304, Pope Benedict XI wrote a bull Ea nobis ordering the Franciscans to arrest Délicieux for "saying such things as we must not".

Délicieux's succession plot was uncovered by royal authorities in the fall of 1304 and he travelled to Paris to attempt to gain an audience with King Philip IV.

[2]: 170–173 In April 1317, Pope John XXII ordered the Spiritual Franciscans from Béziers and Narbonne, including Délicieux, to come to Avignon and answer for their disobedience.