Perth Charterhouse, the single Carthusian Priory founded in Scotland during the Middle Ages, was located in Perth. It stood just west of the medieval town and was founded by James I (1406–1437) in the early 15th century. James I and Joan Beaufort, Queen of Scots (died 1445) were both buried in the priory church, as was Queen Margaret Tudor (died 1541), widow of James IV of Scotland. The Priory, said to have been a building of 'wondrous cost and greatness' was sacked during the Scottish Reformation in 1559, and swiftly fell into decay. No remains survive above ground, though a Victorian monument marks the site. The Perth names Charterhouse Lane and Pomarium Flats (built on the site of the Priory's orchard) recall its existence.