Ancient Diocese of Sisteron

[1] The diocese of Sisteron was part of the ecclesiastical province of Narbonensis Secunda, whose Metropolitan was the Archbishop of Aix-en-Provence.

In 374, the town of Sisteron belonged to the Province of Gallia Narbonensis Secunda, and held the rank of sixth place.

[2] In 890, the bishops of Provence assembled in the Council of Valence, under the leadership of the archbishops of Lyon, Arles, Embrun, and Vienne.

The bishops took note of the fact that Archbishop Bernoin of Vienne had been to Rome to complain to the pope of the increasing disorder of the kingdom since the death of Charlemagne.

[3] On 7 July 1057, Pope Victor II wrote a letter of privileges for Archbishop Winimann (Viminien) of Embrun.

But, in the fifteenth century, only two of them were resident in Sisteron; the rest were functionaries of the Roman Curia in Avignon.

On the third ballot they elected Jean-Baptiste-Romé de Villeneuve, the sixty-four year old curé of Valensole as their Constitutional Bishop.