Roberto Ivens
| Name | Roberto Ivens |
| Type | Navy trawler
|
| GRT | 281 tons |
| Country |  Portuguese |
| Built | 1906
|
| Builder | Cochrane & Sons, Ltd., Selby
|
| Operator | Portuguese Navy
|
| History | Built as Lord Nunburnholme. Peace-time operator: Sociedade de Pescarias a Vapor, Lda., Porto as Lordello.
|
U-boat attacks on Navy trawler Roberto Ivens
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties |
| 1 | 26 Jul 1917 | UC 54 (Heinrich XXXVII Prinz Reuß zu Köstritz) | Sunk | Mined north of Cabo Espichel
|
|
|
| 14
|
| Attribution to UC 54 presumed, additional confirmation of location appreciated.
|
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