Wilson, Daniel. “St Ninian’s Suburb, and the Collegiate Chuch of the Holy Trinity, Founded at Edinburgh by Queen Mary of Gueldres, the Widow of James II., in 1462”. Proceedings of the Society of Antiquaries of Scotland 18 (November 30, 1884): 128-170. Accessed March 29, 2024. http://journals.socantscot.org/index.php/psas/article/view/6098.