 The see was re-established in 1088, after the reconquest of the city of Coimbra by the Christian forces of Sisnando Davides (1064).The first bishop of the new series was Martin.In the midst of the difficulties of restoring the Church in Portugal in the wake of the request of the country from the Arabs, Bishop Mauricio Burdino applied to Pope Paschal II and obtained a bull "Apostolicae Sedis" (24 March 1101), assuring him of the possession of the old territory of his diocese, including parts which were once part of the diocese as they are reconquered from the Moors and the Arabs.