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On April 3rd, 1917, Vasilefs Constantinos, en route from Piraeus (Greece), was sunk by the German submarine UB-43 (Hans von Mellenthin), in the Ionian Sea.
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References
- Dounis Ch. Shipwrecks in the Greek Seas. 1900-1950 (vol. A). Athens: Finatec, 2000, p. 162
- Steamer Vasilefs Constantinos – Ships hit by U-boats – German and Austrian U-boats of World War One – Kaiserliche Marine – uboat.net [WWW Document], n.d. URL https://uboat.net/wwi/ships_hit/6267.html (accessed 28.3.21).
- WRECKSITE – VASILEFS CONSTANTINOS CARGO SHIP 1913-1917 [WWW Document], n.d. URL https://wrecksite.eu/wreck.aspx?169715 (accessed 28.3.21).