Sc. Obs. Corruption of F. treizain (f. treize thirteen), popular name in France for certain heavy douzains (silver pieces of 12 deniers tournois) or grands blancs au soleil of Louis XI.
These had been issued at 78 to the marc instead of 86, and were thus about 1/12 heavier than the ordinary douzains, and passed as worth 13 deniers. (M. Dieudonné, Cabinet de Medailles, Paris, through Mr. G. F. Hill, Brit. Mus.)
1524. Acts Parlt. Scot. (1875), XII. 40/2. Forsamekle as sowsis tracentis & karolusis franche monye brand layit wt coper has passage in þis Ralme.
