The Tolbooth, or Pretorium burgi de Edtnburgi
The Tolbooth of Edinburgh is supposed to have been built about 1466, when James III. erected St. Giles’s into a collegiate church, and the chapter-house thereof being of sufficient dimensions, would naturally lead to the meeting-place of parliaments, though many were held in Edinburgh long before the time of James III., especially in the old hall of the Castle, now degraded into a military hospital.
The first Parliament of James II. was held in the latter in 1437 ; in 1438 the second Parliament was held at Stirling, but in the November of the same year another in Pretoria burgi de Edinburgh,
source-Old and Edinburgh