Career
Of his early life nothing is known. In 1350, when he is first mentioned, Boeri was Abbot of Saint Chinian (Street Anianus, Hérault) in the small diocese of Saint-Pons de Tomièrs (Sancti Pontii Tomeriarum) which at that time formed a part of the Metropolitan Province of Narbonne. He attracted the favourable notice of Pope Urban V, who appointed him Bishop of Orvieto, 16 November 1364.
A few years later (7 October 1370) he was transferred by the same pontiff to the See of Vaison, near Avignon in France.
But in 1371, shortly after Urban"s death, he returned to Orvieto and remained in possession of that see until 28 June 1379, when he was deprived of his bishopric by Pope Urban VI, for having espoused the cause of the Antipope Robert of Geneva, then reigning at Avignon as Clement VII. Upon his subsequent withdrawal to France he served Charles V of France, in the capacity of ambassador to the pontifical court at Avignon.) However, 31 August 1387, Clement VII likewise deposed him from his episcopal office and entrusted the temporal and spiritual administration of Orvieto to Thomas de Jarente, Bishop of Grasse. Boeri died shortly afterwards.