San Francesco
| Name | San Francesco |
| Type | Sailing vessel |
| GRT | 47 tons |
| Country |  Italian |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Sailing vessel San Francesco
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 26 May 1917 | UC 20 (Hans Adalbert von der Lühe) | Sunk | off Sicily | ||||
| dates per Lloyd's | ||||||||
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