She operated as part of the Flanders Flotilla based in Zeebrugge. UB-56 was sunk at 23:41 on 19 December 1917 at after striking a mine, 37 crew members lost their lives in the event.
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/v9NDJ9aZxAkJXMsxfJXOLQ== | 5.88129e-14 |
| dbr:SM_UB-56 | 5.88129e-14 |