Marie 3
| Name | Marie 3 |
| Type | Pilot boat |
| GRT | 25 tons |
| Country |  French |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Pilot boat Marie 3
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 24 Jan 1917 | UC 21 (Reinhold Saltzwedel) | Sunk | Bay of Biscay, off Gironde estuary | ||||
| Sailing vessel | ||||||||
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