Earliest date at which Walter de Bidun may have been chancellor ×; around the probable date of Edward, bishop of Aberdeen's consecration, which may have coincided with the dedication of the church of Dunfermline Abbey (on which, see <em>Charters of David I</em>, 136). See also A.A.M. Duncan. 'The Foundation of St Andrews Cathedral Priory, 1140', 23, n. 93