Pope Gregory III (; died 28 November 741) was the bishop of Rome from 11 February 731 to his death. His pontificate, like that of his predecessor, was disturbed by Byzantine iconoclasm and the advance of the Lombards, in which he invoked the intervention of Charles Martel, although ultimately in vain. He was the last Pope to seek the consent of the Byzantine exarch of Ravenna for his election, and the last non-European pope until the election of Pope Francis on 13 March 2013, more than 1,271 years later. Election Gregory was the son of a Syrian named John. He was elected pope by popular acclamation on 11 February 731, but was not formally consecrated as bishop of Rome until 18 March, after having received the approval of the Byzantine exarch of Ravenna. He was the last pope to seek the exarch’s ratification of a papal election. Iconoclasm Immediately upon his accession, Gregory appealed to Emperor Leo III to moderate his position on iconoclasm. When Gregory's representative was arrested on the orders of the emperor, Gregory called a synod in November 731, which condemned iconoclasm outright. Leo responded by trying to bring the pope under control, but the fleet he sent to enforce the imperial will was shipwrecked in the Adriatic Sea. He then proceeded to appropriate papal territories in Sicily and Calabria, and transferred ecclesiastical jurisdictions in the former praetorian prefecture of Illyricum to the patriarch of Constantinople. However, his attempt to force the duke of Naples to enforce an imperial decree to confiscate papal territory in the duchy failed, as the duke was supportive of the pope’s stand. Gregory, in the meantime, demonstrated his opposition to iconoclasm by emphasising his veneration of icons and relics. He repaired or beautified numerous churches, which involved their decoration with icons and images of Jesus Christ, the Virgin Mary and the saints. He ordered to be erected in the heart of St. Peter’s Basilica an iconostasis, situated between six onyx and marble columns which had been sent to Gregory as a gift from the exarch Eutychius. He built a new oratory in St. Peter's Basilica to house the relics of a number of saints, convoking a synod in 732 in order to regulate the prayers and masses to be said there. Gregory was an enthusiastic supporter of monasticism; he established the monastery of St. Chrysogonus and rebuilt the hospice of Saints Sergius