In Roman times as a prime requisite a water mill, it is said, was erected upon the rocky channel of the Medlock below the station and town, on a site which in later times was called Knot Mill. If this be correct, the situation must have been found inconvenient, for the town mill next heard of was situated on the Irk. The right of compelling their vassals to grind at the “lord’s mill,” and to pay such tolls as he might fix, was a valuable privilege to the lord of the manor of a busy and thriving place. When Randle, Earl of Chester, granted the first charter to Salford in 1230, he said in it:—“No burgess ought to bake bread to be sold save at my oven by reasonable custom. If I shall have a mill there the burgesses shall grind at my mill to the twentieth measure, and if I shall not have a mill there they may grind where they will.” When Thomas Grelle, Baron of Manchester, in 1301, granted the charter, by which for many succeeding centuries Manchester was governed, he was careful to remind his burgesses that they should have their corn ground at his mill and their bread baked at his oven, “paying to the aforesaid mill and aforesaid oven the customs as they ought and are wont to do.” The Grammar School was founded in 1515 by Hugh Oldham, Bishop of Exeter, Hugh Bexwyke, Ralph Hulme, and Joan Bexwyke, and in what respective proportion the institution is due to these worthies may be a matter of doubt. For the endowment of the school they purchased, for a “valuable consideration,” the amount of which is not stated, the lands, rents, and services of the Manchester Corn Mills and all their tolls. Lord La Warr, in thus parting with the ancient soke mills of his manor, merely retained a chief rent, which was then fixed at £9 13s. 4d. The transfer of the mill from the wardens of the college to an independent body of feoffees is set forth in a deed which was executed in 1525, and in which Hugh Bexwyke, clerk, and Joan Bexwyke, widow, state that Thomas West, Knt., Lord La Warr, “did give grant and confirm to them and to Ralph Hulme, deceased, all his lands and tenements, rents, reversions, and services of his water corn mills, called Manchester Mills, situate and being in the town of Manchester, upon the water or rivulet of Irke, running and flowing from and in the town of Manchester and the precincts of the same as far as the water or river of Irwell, flowing between the town of Manchester and the town of Salford, and also of all the tolls soken of the aforesaid mills of all the tenants of the said Lord La Warr in Manchester, and of his sojourners of the same, and of all other residents there.” Further, the same Thomas, Lord La Warr did give, grant, and confirm to them his “fulling mill there, called a walke millne, situate, standing, and being upon the said rivulet or water called Irke; and also his close of land, with its appurtenances, called Walker’s Croft; and also Thomas, Lord La Warr in