Jan Jacobsen (fl. 1665–1667) was a mid-17th-century Flemish-born Dutch corsair and privateer. Operating out of France with other Dunkirkers such as Karel Verburg and Jan Jansen Gouverneur, he acted on behalf of England during the Second Anglo-Dutch War in the mid-1660s.Rommelse, Gijs. The Second Anglo-Dutch War (1665-1667): Raison D'état, Mercantilism and Maritime Strife. Hilversum: Gigs Rommelse & Uitgeverij Verloren, 2006. (pg. 115)
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