 This he did at the request of Countess Matilda of Tuscany and in consideration of the considerable merits of Bishop Dagibert in remaining faithful to the Roman church in the face of the schism against Pope Gregory VII.Pope Gelasius II, who was staying in Pisa from 2 September to 2 October 1118, confirmed the arrangements in a bull of 26 September 1118.After the death of Pope Gelasius at Cluny on 29 January 1119, Archbishop Petrus and Cardinal Petrus della Gherardesca dei Conti di Donoratico, a native of Pisa and papal legate, crossed to Corsica to receive to obtain the oaths of fealty of the bishops of Corsica.