In 664 at the synod of Whitby, Oswio accepted the usages of the Roman Church, which led to the departure of Colman and the appointment of Wilfrid as bishop of York.
From Hartlepool Hilda moved to Whitby, where in 657 she founded the famous double monastery which in the time of the first abbess included among its members five future bishops, Bosa, 'Etta, Oftfor, John and Wilfrid II.
At the synod of Whitby in 664 Hilda sided with Colman and Cedd against Wilfrid.
In spite of the defeat of the Celtic party she remained hostile to Wilfrid until 679 at any rate.
After his baptism Edwin, according to Bede, began to construct "a large and more noble basilica of stone," but it was partly destroyed during the troubles which followed his death, and was repaired by Archbishop Wilfrid.