Nightbringer | The Arthurian Online Encyclopedia

Caliph of Baghdad

Wolfram von Eschenbach, in Parzival, specifically mentions that Baruc was the Caliph of Baghdad, though the reference to the Caliphate is an anachronism, since the traditional Arthurian period predates Muhammad and the foundation of the Caliphate.

See also
Babylon | The Legend of King Arthur
Babylonia | The Legend of King Arthur