Sinding was a sculptor of international repute, a native of Norway whose formulative years were spent in Berlin before he married a Dane and settled in Paris. The Walküre depicts the Wagnerian heroine Brunhilde sweeping down the mountain, speeding on her furious steed in fierce anticipation of battle below. Bröchner recounts that Sinding took a studio halfway up the Boulevard de Raspail especially so he could study horses going downhill. He spent hours in observation until one day a Normandy stallion became restive right outside his window. He seized the opportunity to sketch the bared teeth and peculiar expression that is the hallmark of this wild and wind-swept creature.
Many of Sinding's works were bought by Carl Jacobsen and can be found in the Ny Carlsberg Glyptotek. The Valhalla Frieze commissioned to illustrate Norse mythology similarly depicts violent displays of energy including a panel of mounted female amazons.
E. J. Bencard and F. Friborg, Catalogue. Danish Sculpture around 1900. Ny Carlsberg Glyptotek, Copenhagen, 1995, pp.133-37; G. Bröchner, 'A Norwegian Sculptor: Stephan Sinding' in Studio Magazine, July 1914, pp. 17-20, pp.17-20