HMS Mary Rose and pirates

This image appears in William Laird Clowes (ed.): The Royal Navy. A History From the Earliest Times to the Present, Vol. 2, London 1898, where it is described, according to its caption, as HMS Mary Rose (48 guns), Captain John Kempthorne, in a battle with seven Algerine pirate ships between Salé and Tangier, December 8th, 1669. Clowes states that the painting is ascribed to van de Velde the younger. In reality the painting's creator and subject are both uncertain; the action it depicts is likely that of Morgan Kempthorne of HMS Kingfisher (1675) fame, (see Mariner's mirror volume 12, 1926) and the painting upon which the engraver, Elisha Kirkall, based the engraving may be a copy by Cornelius van de Velde of one by van de Velde the younger.