Jan van Kessel the Younger are attributed about 200 small still lifes produced in Southern Europe in the late 16th and early 17th century. Jan van Kessel the Younger's small known authentic oeuvre is different in style and execution and substantially higher in quality than the works, which have now been attributed to Pseudo Jan van Kessel the Younger. His portrait style was described by his contemporary Antonio Palomino as very close to that of his fellow Flemish painter Anthony van Dyck. Van Kessel was a specialist of the genre of group portraits. An example is the "Portrait of a family in a garden" in
Fortifications of Copenhagen (17th century) Sø. In the beginning of the 17th century, Sankt Jørgens Sø was created, as a result of further damming. As a results of these efforts, it was now possible to flood the banks and lakes in case of an attack on the city. Many gunpowder magazines were located in the fortifications After his appointment as Naval Building Master at Holmen, Hans van Steenwinckel the Youngest was responsible for the construction of two gunpowder magazines at the Christianshavn Rampart. Construction of the first magazine, located at Vilhelms Bastion, was commenced in 1688, while the second one, built to a similar design