Wieland der Schmied (Bella)

Oskar Schlemm adapted Wagner's outline to a full libretto (in German) for Bella, who wrote the music for it between 1880 and 1890, during which period he was living in Sibiu (now in Romania).

"[6] The original legend of Wieland is told in Old Norse sources such as Völundarkviða (a poem in the Poetic Edda) and Þiðreks saga.

He takes revenge by killing the king's sons and then escapes by crafting a winged cloak and flying away.

[7] In Wagner's libretto, Schwanhilde is the daughter of a marriage between a mortal woman and a fairy king, who forbids his wife to ask about his origins; on her asking him he vanishes.

But wounded by a spear, Schwanhilde falls to earth and is rescued by the master-craftsman Wieland, and marries him, putting aside her wings and her magic ring of power.