The monastery church of Montauriol, which became the Cathedral, had been dedicated to Saints Martin and Theodore; and was pillaged and burnt by the Protestants on May 20, 1561.
In 820 Benedictine monks had founded Montauriol Abbey under the patronage of Saint Martin; subsequently, it adopted the name of its abbot Saint Theodard, Archbishop of Narbonne, who died at the abbey in 893. The Count of Toulouse, Alphonse Jourdan, took from the abbey in 1144 its lands on the heights overlooking the right bank of the Tarn, and founded there the city of Montauban; a certain number of inhabitants of Montauriol and serfs of the abbey formed the nucleus of the population. Bertrand de Puy, abbot at Montauriol, was first bishop of Montauban. On 30 July 1317, in the Bull Nuper ex certis, Pope John freed the church of Montauban, which he had erected into a cathedral with a Chapter, from all other jurisdictions, in particular from the diocese of Toulouse, Cahors, Bourges, and Narbonne, and from the Benedictine Order. The monastery church of Montauriol, which became the Cathedral, had been dedicated to Saints Martin and Theodore. It was pillaged and burnt by the Protestants on 20 December 1561. 
