The Southside of the Castle of Edinburgh and Heriot's Hospital (Slezer 1693)
Balcanquall ... was instrumental in selecting a field of eight and a half acres – part of the 'Hie Riggs' – to the south of the Castle and Grassmarket, for the site of the building, and he is thought to have advised the master masons on the original design.
Courtesy of Trustees of National Library of Scotland