This book is translated from the first volume of "Perceval le Gallois ou le conte du Graal"; edited by M. Ch. Potvin for `La Societe des Bibliophiles Belges' in 1866, (1) from the MS. numbered 11,145 in the library of the Dukes of Burgundy at Brussels. This MS. I find thus described in M. F. J. Marchal's catalogue of that priceless collection: `"Le Roman de Saint Graal", beginning "Ores lestoires", in the French language; date, first third of the sixteenth century; with ornamental capitals.'