Black Book of Paisley and Other Manuscripts of the Scotichronicon

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. I was long puzzled to ascertain anything regarding John de Burdeus, the author of the Tract de Pestilentia, which is copied on a fly leaf of the ms. And as no account of him exists in any Book of Reference, so far as...