In the year 1231, a document of the Erbach monastery mentions a knight by the name of Siegfried von Frauenstein who was a marshal with the bishopric of Mainz. He was a descendant of an aristocratic Schierstein family (which would become extinct in 1380).
While the German name Frauen-Stein can be translated "women's stone", it actually derives from Vrowenstein, a name which first appears in the historical record in 1221. In that year, a deed names a Heinrich Bodo von Vrowenstein (in 1207/1209, he was mentioned as being from Idstein) as a lord of Frauenstein Castle.