The traditional founding date of the house is 1429. However, it was three years earlier, on 19 August 1426, that the Prior of La Grande Chartreuse, having received the consent of the General Chapter of the Carthusian Order, authorised the foundation of a house at Perth. King James used much of his own revenue as well as part of the ransom payment owed to the English crown, to begin work on the new house, as well as pressurising others to make grants; the
Cistercian monk John of Bute was given responsibility for overseeing the construction of the priory. The priory may have been intended as a royal mausoleum, and King
James I of Scotland (reigned 1424-1437), his queen
Joan Beaufort (c.1404-1445) and queen
Margaret Tudor (1489-1541), widow of
James IV, were buried there. The first
Prior of Perth, Oswald de Corda, was in office by 31 March 1429. Oswald was a Bavarian who served as vicar of the Grande Chartreuse; while there, he wrote a treatise on textual emendation. ==Property==