46 A MEDIAEVAL CITY religious. The Church's festivals were recognised as holidays. Much money was given and be- queathed for the foundation of chantries, which with their priests have their place also in the educational life of the city. The merchants lived well. They were rich from trade, and through the corporate guilds governed their own trades both legislatively and executively ; the highest offices in civic life were theirs; they lived in houses as splendid as they cared to have them; they furnished their homes with quantities of silver plate, both for use and for ornament, for this was the most suitable outlet for superfluous wealth in days when modern facilities for investment did not exist; they wore clothes of fine material, richly trimmed ; they were honoured citizens ; the}' were earnest in religion and their benevolence to the Church is very remarkable. They were forming a lesser aristocracy now that they were becoming owners of agricultural land as well as town property. They had the benefits of wealth and comfort, while they were shrewd enough to avoid the penalties of advertised riches. A typical instance of a successful merchant who rose to high positions .was that of Sir Richard Yorke, who was Mayor of the staple of Calais and Lord Mayor of York in 1469 and 1482, and member of Parliament. A window in St. John's Church, Micklegate, in commemoration of him is still to be seen. A shield bearing his arms (azure, saltire argent) appears in the glass ; another bears the arms of the Merchants of the Wool staple of Calais. He was knighted by Henry VII. when that king was in York in 1487. Masters took apprentices, who themselves gene- rally beca,me masters in their turn. The conditions of apprenticeship were ruled in detail by the guilds,