§ 15. The chantry and the guild chapel had so important an influence on the plan of the parish church, and especially of the larger church, that they deserve further consideration, in company with the anomalies of plan which are their result. Chantries increased in number during the fourteenth century, and, from the period of the Black Death to the Reformation, had an ever growing importance. At Grantham, where it is clear that the enlargement of the church was due to the increase of chantries, three were founded in 1349, two of them at altars inside the church. In 1392 two new chantries were founded, at the altars of Holy Trinity and Corpus Christi, and the maintenance of chantries at the altars of St Mary and St John Baptist was increased by new benefactions. Thus, to large churches, a large staff of priests became attached. Although Grantham was never incorporated as a collegiate church, the body of clergy which served it seem to have had common services in quire together, and to have been known as the 'college.' The chantry priests of a large church would benefit from incorporation in the ordinary course of things, and it very often happened that they were formed into a regular college, or that provisions were made affecting their common life. St William's college at York was founded for the chantry priests of the minster in 1461 by archbishop Neville and his brother, the king-maker. In 1482-3 archbishop Rotherham founded his college of Jesus at Rotherham, to which, as a secondary provision of the foundation, the chantry priests already existing in the church were to be attached. Rotherham recognised that a large body of individual priests, whose duties for the day were finished with their daily mass, would be open to temptation if they were allowed to choose their own lodgings as they liked; and Thomas Kent, whose executors in 1481 founded a 'perpetual commonalty' of the seven chantry priests of St James Garlickhithe in the city of London, expressed his opinion that these chaplains 'conversed among laymen and wandered about, rather than dwelt among clerks, as was decent.' Not infrequently, a benefactor who wished to found a chantry of more than one chaplain, acquired the advowson of the church in which it was to be founded, and secured its appropriation to his chaplains, who held it in perpetuity, and were incorporated as a college. This was the case with the college of Sibthorpe. In 1333 Sir John Heslerton, patron of the church of Lowthorpe in east Yorkshire, founded a college of six priests in the church, whose duties were set forth in detail by archbishop Melton in his ordinance for the new college, which included the appropriation of the church to it. Sir John represented to the archbishop that the fruits of the living would serve for the maintenance of more than one parson, but that there were few ministers there. 'Many persons there,' he said, 'who are attached to the worship of the Holy Trinity