The date of the Romanesque fabric of the abbey church of Lessay (Manche, France) has been much debated by architectural historians. Was the eastern arm of the church completed by the time of the burial of Eudes de Capel in the choir on 3 August 1098? Or do features such as the high rib vault and scalloped capitals preclude a date in the late eleventh century? This paper argues that the choir was completed by 1098, and that the master mason of Lessay was acquainted with architectural developments in north-east England in the 1080s and early 1090s, especially those at York Minster, St Mary's Abbey, York, and allied churches.