Simplify the following text for a Grade 5 native English-speaking person.
Original: Wotan is standing on a rocky mountainside with BrÃ 1\/4 nnhilde , his Valkyrie daughter . He instructs BrÃ 1\/4 nnhilde to protect Siegmund in his coming fight with Hunding .
Simplified: Wotan tells his daughter BrÃ 1\/4 nnhilde that she must make sure that Siegmund wins the fight with Hunding .