A Mountainous Landscape with a Waterfall, ca. 1600, Oil on wood, 27 1/4 x 48 in. (69. 2 x 121. 9 cm), Paintings, Kerstiaen de Keuninck (Flemish, Kortrijk ca. 1560?1632/33 Antwerp), Unlike Jan Brueghel the Elder, who was a leading figure in the development of realistic landscape painting, Kerstiaen de Keuninck continued the Flemish tradition of imaginary mountain scenery that descended from Patinir