According to Turgot, Queen Margaret, after her marriage, founded a church "in that place where her nuptials were celebrated," and it was dedicated to the Holy Trinity in 1074. It became the place of royal sepulture, and Queen Margaret was buried within it. There are frequent references from this time onwards of grants to the church of the Holy Trinity, and to interments of royal personages therein. "The original church of Canmore," says Professor Innes, "perhaps not of stone, must have been replaced by a new edifice when it was dedicated in the reign of David I.,"[333] and Messrs. MacGibbon and Ross add "As no notice has been preserved of the erection of any new church till the building of the choir in the first quarter of the thirteenth century, it has been supposed that the nave of the existing structure (which is in the Norman style) may have been the church founded and erected by Queen Margaret. But the style of the building forbids this supposition. None of the English cathedrals were founded till the end of the eleventh century, and few were carried out till the expiry of the first quarter of the twelfth century. Scotland would certainly not be in advance of England in its style of architecture, and we know that little, if any, Norman work was executed in this country till the days of David I.... The style of the structure is early Norman, and would naturally follow the erection of Durham Cathedral, which took place about twenty-five years earlier."[334] The same authorities think that the original church of Malcolm stood where the new choir was afterwards erected, and that David I. added the Norman nave to it. "The nature of the site seems to favour this view, as the ground to the west slopes rapidly away, and scarcely allows room for the west end of the nave; while the conventual buildings, for want of suitable space, have had to be carried with an archway over a public street."[335] Alexander I. seems to have contemplated its erection into an abbey, and in the year of his succession David I. remodelled it as a Benedictine Abbey, and placed in it an abbot and twelve brethren brought from Canterbury. By the close of the thirteenth century it had become one of the most magnificent institutions in Scotland.