Abbot Warwick in 1271 laid the foundation stone of a new church to St. Mary’s Abbey. He began by building at the rear of the Norman church a new aisled choir of nine bays. The Norman edifice was then taken down and replaced by a new aisled nave of eight bays, transepts of three bays with eastern aisles, and lofty tower with spire. The western front has a central doorway set between arcading; the doorway jambs are delicately sculptured with the ivy and its trailing stem. The aisle windows are alternately of two and three lights with geometrical tracery and placed above an arcade--the work is similar to that in the north aisle of the choir at Selby Abbey. One of the views depicts the eastern archway with clerestory of the nave north aisle. The remains of the church show it to have been a magnificent example of the art of the last quarter of the thirteenth century. Excavations have revealed the foundations of the choir and exhibit the full length of the church. The ruins of the vestibule and entrance to the chapter house are beautiful examples of the richly ornamented late Norman work. The walls of the abbey close remain. The principal, and for a long time the only entrance, was that of Mary Gate. There is a fine arch and on either side of the gateway is an arcade with stone seats. The vaulted roof and the courtroom above for the Liberty of St. Mary have disappeared. The gatehouse adjoins and is now a private dwelling. John Phillips, the eminent geologist, resided in it for some years. On the opposite side are the ruins of the Chapel of Our Lady at the Gate; the edifice was of two stories, with the chapel on the first floor which was reached by a stone stair. The Bootham entrance was made in order to shorten the distance from the abbot’s house to the Minster, and in expectation of a visit of Henry VII, on his return from Scotland. The Princess Margaret, daughter of Henry VII, was the guest of the Lord Abbot of St. Mary’s for two days on her journey to the north to be the bride of James IV of Scotland. The Princess, accompanied by five hundred lords and ladies, was met at Tadcaster Bridge by the Sheriffs in crimson gowns, attended by one hundred persons on horseback, who conducted her royal highness towards the city. At Micklegate Bar, the Princess was received by the Lord Mayor and Corporation, who welcomed her to the city. On the following day the Lord Mayor and Corporation waited upon the Princess, and presented her with a silver gilt cup containing one hundred angels of gold for which she heartily thanked them. The next day the Lord Mayor, Sheriffs, and Aldermen escorted the Princess as far as Magdalene Hospital in Bootham. The Lord Mayor made a long oration in taking his leave, to which the Princess replied, “My Lord Mayor, your brethren, and all the whole city of York. I shall evermore endeavour to love you and this city all the days of my life.”