According to Houbraken he was the older brother of the painter Reynier Covyn.
[1] He painted scenes from the Spaens Heydinnetje, a popular book by Jacob Cats loosely based on one of the pastoral scenes from Cervantes' Don Quixote.
[1] Houbraken wrote that he was the oldest painter he knew in the Dordrecht Guild of St. Luke, and that he had been a member there since 1647.
[1] Houbraken remembered him on St. Luke's day (October 18) at the guild table wearing a wreath of grape vines, an old tradition that was still ongoing when Houbraken was writing in 1711.
[1] According to the RKD he was the older brother of Reynier Covyn, but no known works survive.