He already governed the diocese of Arles when he participated on 12 August 632 in the funeral of Saint Resticula or Resticule, abbess of the Monastery of Saint John, Arles.
[2] The Council of Chalon-sur-Saône (647–653) was attended by most of the bishops of Provence, as well as the metropolitans of Lyon, Vienne, Rouen, Sens, Bourges and Besançon.
[8] According to H. Clair, Theodosius heard the council's decision condemning him as a heretic in his own cathedral.
[9] According to some, Theodosius then went to Rome where he obtained pardon from Pope Vitalian (657–672) who sent him in penance to preach in England.
According to the historian Jean-Pierre Papon, a certain Theodore (and not Theodosius) crowned bishop of Canterbury by Pope Vitalian, would have been received by John I before his departure for England at the earliest around 657.