Gunnar Olof Hyltén-Cavallius
Gunnar was the son of a clergyman from Vislanda. While he as a student at the Uppsala University, he was impressed with the late currents of Gothicismus. He was an employee at the Swedish Royal Library in the period 1839-1856, the director of the Royal Theatres, 1856-1860, and the Chargé d'affaires in Brazil, 1860-1864.
Gunnar was early interested in the collection of fairy tales and legends, and together with George Stephens, he published the first collection of Svenska folksagor och äfventyr in 1844-1849. His main work was Wärend och Wirdarne (1-2, 1863-1868), which was inspired both by Jacob Grimm's Deutsche Mythologie (1835) and evolutionist theories of Sven Nilsson. Wärend och Wirdarne can be seen as the foundation of Swedish ethnology.