St John's Gate, Clerkenwell
St John's Gate is one of the few tangible remains from Clerkenwell's monastic past, it was built in 1504 by Prior Thomas Docwra as the south entrance to the inner precinct of the Priory of the Knights of St John - the Knights Hospitallers. The substructure is of brick, the north and south façades of stone. After centuries of decay and much rebuilding, very little of the stone facing is original; heavily restored in the 19th century, the gate today is in large part a Victorian recreation, the handiwork of a succession of architects – W. P. Griffiths, R. Norman Shaw, and J. Oldrid Scott.
The building has many historical associations, most notably as the original printing-house for Edward Cave's pioneering monthly, the Gentleman's Magazine, and sometime workplace of Samuel Johnson. Used for many years as a tavern, the gate was acquired in the 1870s by the revived Order of St John, and was gradually converted to serve as the headquarters and museum of the organization and its offshoot, the St John's Ambulance Brigade. Most of the Tudor-style interiors – including the Council Chamber over the arch – are the result of refurbishment by Scott in the 1880s and '90s.
See Also
Historical picture of St John's Gate http://www.londonancestor.com/views/vl-stjohnsgate.htm