Harald Reinl - Die Nibelungen, Teil 2 - Kriemhilds Rache (1967)

Now Brunhild knows by which treason she was won for king Gunther of Burgund by Siegfried of Xanthen, and has been revenged by his foul murder by Hagen, more bloody revenge is inevitable. Hagen steals the Nibelungen-treasure to sink it in the stream and manages to kill Alberich and seize his invisibility-cap. Queen Kriemhild is packed of to an abbey so her son may grow up to become a prelate, but

Harald Reinl - Die Nibelungen, Teil 1 - Siegfried (1966)

Volker von Alzey, the royal bard of the Burgunds (far greater then modern Burgundy), ruled by the Christian, papist king Gunther, who has two brave, loyal brothers and a sister Kriemhild, tells in rhyme the tale of Siegfried of Xanthen, who in the northern kingdom of the Lowlands was a forgery apprentice, till his jealous rival's attack made him drench his blade in blood, which made it