Danevirke
| Name | Danevirke |
| Type | Steamer |
| GRT | 1,433 tons |
| Country |  Danish |
| Built | 1907 |
| Builder | Howaldtswerke, Kiel |
| Operator | A/S Dampsk. Selsk. af 1915 (Svenson & Jespersen), Copenhagen |
| History |
U-boat attacks on Steamer Danevirke
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 5 Jan 1917 | UB 18 (Claus Lafrenz) | Sunk | 10 miles off Ushant | 49° 14'N, 4° 17'W | Newcastle-on-Tyne - Gibraltar | coal | 0 |
Position of attack on Danevirke
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