under the guardianship of the rectors of Kirk Deighton, Sutton-on-Derwent and Kippax respectively, and he made the vicars of Thirkleby and Bossall successively masters of Moxby[770]. Bishop Dalderby of Lincoln appointed neighbouring rectors and vicars to be masters of Legbourne, Godstow, Rowney, Sewardsley, Fosse, Delapre, St Leonard's Grimsby, and Nuncoton[771]. Sometimes, on the other hand, canons or monks of religious houses in the vicinity were charged with looking after the affairs of nunneries. Swine was managed by Robert de Spalding, a canon of the Premonstratensian house of Croxton, and in 1289-90 Archbishop Romeyn wrote remonstrating with the Abbot of Croxton for recalling him, and begging that he might be allowed to continue at Swine, "cum idem vester canonicus proficuos labores ibidem impenderit ad relevacionem probabilem depressionis notorie dicte domus"; but the capable Robert was not allowed to return and in 1290 John Bustard, canon of St Robert's Knaresborough, was appointed in his place. John was not a success and the next year the Abbot removed him; in 1295 Robert of Spalding became master again and in 1298 the rector of Londesborough was appointed[772]. At Catesby in 1293 the office of master was held by a certain Robert de Wardon, a canon of Canons Ashby, who had apparently left the nuns and gone back to his own house, to the great detriment of the nunnery, for Bishop Sutton wrote in 1293 to the Prior of Canons Ashby, bidding him send back the truant[773]. Similarly a canon of Wellow is found as warden of St Leonard's Grimsby in 1232 and in 1303[774], a monk of Whitby as guardian of Handale and Basedale in 1268[775], a canon of Newburgh at Arden in 1302[776] and a canon of Lincoln at Heynings in 1291: concerning the latter Bishop Sutton wrote to the nuns that since, "because of private business and various other impediments he is prevented from looking after your business as much as it requires, the vicar of Upton your neighbour is to look after your affairs in his absence," and in 1294 he was definitely replaced by the rector of Blankney[777]. It is clear from this letter that the masters of nunneries could be non-resident and this was no doubt usually the case when the office was held by the rector of a neighbouring parish. Indeed sometimes the same man would be master of more than one nunnery; as in the case of the monk of Whitby mentioned above. It was probably rare after the beginning of the fourteenth century for a _custos_ to reside at a nunnery, as the early Cistercian priors had done[778].