Kammala wannan jumla: Sarkin sarakuna Frederick II ya nada mai goyon bayan gida, mai suna Bamberg canon Henry na Bilversheim, bishop. Bishop Henry ya zama na farko Prince-bishop; a karkashin mulkinsa, diocese a hankali ya zama yanki na yanki, kuma bishops sun dauki fifiko na duniya bayan bishops na Mainz Daga kimanin 1305, an yi amfani da Castle Altenburg a matsayin mazaunin zama na biyu. A cikin 1390 Bishop Lamprecht, tsohon shugaban majalisa na Sarkin sarakuna Charles V, shi ma ya sami sansanin soja na Giechburg. A farkon karni na 15 ya ga rikice-rikice masu tsanani tare da
'Yan tawayen Hussite da kuma mutanen Bamberg. Bishop Heinrich Groß von Trockau (d. 1501) ya shiga cikin fadace-fadace da yawa tare da yariman Hohenzollern Casimir na Brandenburg-Bayreuth.