Madonna delle Grazie B.
| Name | Madonna delle Grazie B. |
| Type | Sailing vessel
|
| GRT | 105 tons |
| Country |  Italian |
| Built | 1887
|
| Builder | Lucio Contreras, Gaeta
|
| Operator | Concetta Ballotta, Syracuse
|
| History | Wooden brigantine
|
U-boat attacks on Sailing vessel Madonna delle Grazie B.
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties |
| 1 | 6 Apr 1918 | UC 52 (Hellmuth von Doemming) | Sunk | Stopped and scuttled in the Ionian Sea
| 37° 54'N, 16° 57'E
| Sicily - Piraeus
| salt
|
|
Position of attack on Madonna delle Grazie B.
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