Martins, the Louvain Printer

Your correspondent "W." (No. 12. p. 185.) is informed, that in Falkenstein's *Geschichte der Buchdrucherkunst* (Leipzig, 1840, p. 257.), Theoderich Martens, printer in Louvain and Antwerp, is twice mentioned. I have no doubt but this is the correct German form of the name. Mertens, by which he was also known, may very possibly be the Flemish form. His Christian name was also written Dierik, a short form of Dietrich, which, in its turn, is the same as Theodorich.