Lanfranc
| Name | Lanfranc |
| Type | Hospital ship |
| GRT | 6,287 tons |
| Country |  British |
| Built | 1907 |
| Builder | Caledon SB. & Eng. Co., Ltd., Dundee |
| Operator | Booth SS. Co., Ltd., Liverpool |
| History |
U-boat attacks on Hospital ship Lanfranc
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 17 Apr 1917 | UB 40 (Hans Howaldt) | Sunk | 42 miles N1/2E of Le Havre | 50° 11'N, 0° 12'E | Le Havre - Southampton | 34 |
Position of attack on Lanfranc
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