Ancient Diocese of Orange

It had been founded as a retirement colony for veterans of the Roman Army who had served under Augustus during his campaigns against Marc Antony.

On 8 August 1520, King Francis granted Bishop Guillaume Pélissier an extra six months to make his submission to the Chambre des comptes of the Dauphiné.

[5] In accordance with the Concordat of 1801, Pope Pius VII attached the territory of the diocese to the archdiocese of Avignon by the papal bull Qui Christi Domini of 29 November 1801.

In January 2009 Pope Benedict XVI revived the title for use as a titular see,[6] for auxiliary bishops of other dioceses and for curial bureaucrats to whom episcopal status is granted.

[7] The title currently (since 27 January 2012) belongs to Archbishop Julio Murat, Apostolic Nuncio to Cameroon and to Equatorial Guinea since 2018.