These plans were made by a surveyor named J. Symans in the reign of Queen Elizabeth. From the mention of Sir Thomas Heneage’s garden, their date is probably before 1595, when Sir Thomas, who was Keeper of the Tower Records, died. The first shows the ground floor of the buildings then standing. The original monastery extended from the street, now called Leadenhall Street, northward and eastward to the old Wall. Two semicircular bastions and a third which formed one tower of Aldgate are seen on the plans, which also, among items otherwise unknown hitherto to London topographers, give us the canon’s church as well as that of the parishioners of St. Katherine Cree. Both these buildings have now disappeared. The conventual church in Symans’ plan had already been in part removed by Lord Chancellor Audley, in favour of the “Ivye Chamber.” The “Charncell” is still intact and “owre Ladychapell”; but there is notice of “the north end where the great tower fell Downe” and “the south end now teniment.” By “end,” Symans meant transept. The cloister and the chapter house, one portion of which is labelled “This was the chapell,” the body of the church and a south porch are clearly denoted; while, of the domestic buildings, we distinguish the gatehouse labelled “The way owte of Allgat Streat into Creechurch monastary”: the Dorter, or sleeping quarters of the monks, which open from the cloister; more than one extensive garden; the “Greate Cowrte,” and a number of apartments or separate small holdings, let to various tenants, whose names, Awnsell, Bayle, and Kirwin, for example, occur in several places on the plans. At the north side of “the Great Garden adioyning the Dorter” and close to the city wall, is “A Foundation for new buildings uppon the wall”; this seems to be let to Awnsell, who has also a lease of the garden. The north chancel aisle is let in “new Teniments.” Some relics of the vaults, or “Favlts,” are occasionally disclosed in Leadenhall Street; some Norman arches are figured by Malcolm and there are others in Pennant’s _London_, 1793, and many other books; but no Tudor plan of the buildings has hitherto been published. [Illustration: PLAN OF HOLY TRINITY PRIORY (Ground Floor Story). PLAN OF HOLY TRINITY PRIORY (Second Floor Story).