Raphael Ludvig Meyer (29/3 1869 - 5/9 1925), Danish librarian and philologist.
Meyer republished Copenhagen's Dance of Death with introduction and annotations (See the section about Copenhagen's Dance of Death).
The Danish version of the present page includes Meyer's 30-page introduction. Click the red and white Danish flag in the top, right corner. Meyer's book is also available from the Internet Archive: Den Gamle Danske Dĝdedans.