Shakespeare's Witches are bearded. ("You should be women, and yet your beards forbid me to interpret that you are so." Act i, scene 3.)There is also the possibility that the three witches can be linked with the Fates, in the Germanic tradition, "did Norne." Karl Blind links them to "die Nonne" in a folksong :
t need scarcely be brought to recollection that a commingling of the female and male character occurs in the divine and semi-divine figures of various mythological systems---including the Bearded Venus. Of decisive importance is, however, the fact of a bearded Weird Sister having apparently been believed in by our heathen German forefathers.
Though the word "Norn" has been lost in England and Germany, it is possibly preserved in a German folk-lore ditty, which speaks of three Sisters of Fate as "Nuns." ...
In every resepct, therefore, his [Shakespeare's] "Witches" are an echo from the ancient Germanic creed---an echo, moreover, coming to us in the oldest Teutonic verse-form; that is, in the staff-rime.
Karl Blind.*