its way subsequently into the library of the Scots College at Douay. From there, it was supposed to have come into the possession of Bonnie Prince Charlie himself, who took over the MS when on a visit to the Scots College in the early 1750s. The Lauder–Scott correspondence Soon after Sir Thomas saw the book, he wrote of it to Sir Walter Scott, in a letter dated 1 June 1829. In this letter, Lauder highly commended the book, stating that several clan chiefs, such as Cluny MacPherson and McLeod, had derived their "true and authentic" tartans therefrom. Lauder described the manuscript in detail, stating that he had obtained drawings, in colour, of all of the tartans contained therein (about 66 in number) and sent some of these to Sir Walter Scott himself. In addition to material on tartans, the book also contained appendices on women's plaids (arisaids) and on hose and trews. In the end, Lauder urged the brothers to have the book published and made inquiries concerning costs and procedures to that end. A plan was adopted to publish it, illustrated by swatches of silk in the tartan colours and patterns. In his reply of 5 June 1829 Scott expressed scepticism over the claims of both the brothers Sobieski and the manuscript itself, at the same time requesting that a copy of the MS be sent for investigation by competent authorities in antiquities. Among other things, he disputed the assertion that Lowlanders had ever worn tartans or plaids, questioned the lack of any corroborating evidence (including any in Bishop Lesley's writings even though Lesley was said to have been in possession at one time of the original upon which the present MS was based), and called into question the authenticity of the brothers. He also noted that the title – Vestiarium Scoticum – was, in his words, "false Latin". On 20 July 1829 Sir Thomas replied to Sir Walter. In this letter, he describes the (alleged) 1571 original from which the 1721 copy, which he saw, is said to be derived and which was in the possession of the brothers' father in London. Sir Thomas then goes on to discuss the brothers' character, credibility, and society's opinion of them, admitting that the "Quixotism of the two brothers must render these very unfortunate individuals for the introduction of a piece of antiquarian matter to the world…". He nevertheless reasserts his