Critical historians regard it as a medieval work, most probably originating among the Chassidei Ashkenaz, as citations from it begin to appear only in the 13th century. Sections of it are no doubt older. The likely compiler of the medieval version is Eleazer of Worms, as "Sefer Galei Razia", which developed to what we have now as "Sefer Raziel HaMalakh", including more writings written by people of various theological opinions.[citation needed]