[1][2][3][4][5] Ignace de Caseneuve of Gap was elected the constitutional bishop of Hautes Alpes on 8 March 1791.
His predecessor as Archbishop of Embrun, Pierre-Louis Leysin opposed the Civil Constitution of the Clergy decided by the decree of 12 July 1790 and refused to take the oath of allegiance.
Ignatius Cazeneuve canon of Gap Cathedral was appointed constitutional bishop of Hautes-Alpes department in March 1791 to replace him and was crowned in Paris on 3 April.
During this period, 14 February 1793, he works with the administrator responsible for monitoring the sale of national assets, but in this role helped support his nephew Stephen Gregory Cazeneuve, then captain of grenadiers of the battalion of the French Alps.
[7][8] He spoke in the trial of Louis XVI for the "detention and banishment" of the king[9] and then made part of the council of five hundred.