Siegfried de Löwe was an influential Redanian noble and the leader of moderate faction of Order of the Flaming Rose. He and his knights are providing protection against a radical faction known as the Fallen Knight lead by self-styled Grand Master Ulrich.
- 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.