horse in the Die Valkery?

It seems you might be asking about "Die Walküre," which is part of Richard Wagner's opera cycle "Der Ring des Nibelungen." There's no horse specifically mentioned in the opera, but it does feature a powerful mythical creature, Brünnhilde's magical steed Grane.

Grane is a magnificent white horse, gifted to Brünnhilde by the god Wotan. He plays a significant role in the story:

* Symbol of power and freedom: Grane represents Brünnhilde's fierce independence and her connection to the gods.

* Means of transportation: He carries Brünnhilde to the battlefield and back, serving as her loyal companion.

* Important plot point: Grane is present during the climactic scene where Brünnhilde's father, Wotan, attempts to kill her but is stopped by Siegmund.

While there's no horse called "Die Valkery," Grane is a crucial element of the "Die Walküre" opera, embodying the spirit of its heroine and playing a part in the unfolding drama.