Siegfried Zonburg
| Other character | |
| Japanese Name | ジークフリート・ゾーンブルク |
| Light Novel | Owari no Chronicle |
| Gender | Male |
Description
The Librarian of Kinugasa Library at Takaakita Academy. He makes investigation concerning the Concept War on UCAT's behalf.
During the Concept War, he was responsible for the destruction of 1st-Gear.