Chateau Yquem
| Name | Chateau Yquem |
| Type | Steamer |
| GRT | 1,913 tons |
| Country |  French |
| Built | 1914 |
| Builder | Atel. & Chant. de la Loire, Nantes |
| Operator | Worms & Cie., Havre |
| History |
U-boat attacks on Steamer Chateau Yquem
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 30 Jun 1917 | UB 40 (Hans Howaldt) | Sunk | 22 miles W1/2N of Portland Bill | Dunkerque - Barry | in ballast |
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