Frigido
| Name | Frigido |
| Type | Sailing vessel |
| GRT | 59 tons |
| Country |  Italian |
| Built | 1904 |
| Builder | Ambrogio Terrizzano, Oneglia |
| Operator | Brizzolari Maria, Viareggio |
| History |
U-boat attacks on Sailing vessel Frigido
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 27 Jul 1917 | U 33 (Gustav Sieß) | Sunk | Stopped and scuttled in the Gulf of Genoa | 44° 18'N, 9° 12'E |
Position of attack on Frigido
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