Jan Martszen the Younger (Jan Martszen de Jonge), Dutch engraver and painter. He was the son of the Haarlem painter Jacobus Martens (1579/80-1647) and the nephew and pupil of Esaias van de Velde. He was active in Haarlem, Amsterdam, and Delft. He specialised in military skirmishes scenes and provided, during the 1630s and 1640s, a series of design for prints published in Amsterdam by Pieter Nolpe (1613/14-1652/3), sharing commissions at times with Pieter and Paulus Potter, Pieter Quast and Bartholomeus Breenbergh. He was the presumed master of Jan Asselyn, leading member of the 'second generation' of Dutch Italianate painters, who started as a battle painter. //