|This article is about the knight mentioned in the Hearts of Stone expansion. For the knight in The Witcher (PC), see Siegfried of Denesle.|
- Because of his name there is a theory that he and Siegfried of Denesle are the same person, with many titles.
- Zygfryd de Löwe - is a malevolent fictional knight in the novel Krzyzacy by Henryk Sienkiewicz.
- Siegfried Walter Loewe - was a German chemist and endocrinologist. Died in 1963 at 76 years of age.