View of the city of Hulst

View of the city of Hulst, painted in 1628 and currently without a specified institutional collection in available records, is an unusual work in de Vos's oeuvre — a topographical cityscape rather than the portraits and figure paintings that define his output. Hulst is a fortified town in Zeeland Flanders, in what is now the Netherlands near the Belgian border, and in 1628 it was a contested military frontier zone between the Spanish Netherlands and the Dutch Republic during the Eighty Years' War. A topographical view of Hulst in 1628 would have carried specific military and political significance, documenting a fortified city that changed hands multiple times during the long conflict. It is possible that de Vos executed this work as a documentary commission related to military operations, similar to the topographical paintings that were produced to record siege sites and fortified positions. The landscape genre was peripheral to de Vos's main practice but was well established in Flemish art, and this work demonstrates his versatility beyond figure painting.

Topographical landscape painting required a different technical approach from figure work — broader handling of sky and terrain, careful attention to architectural silhouette, and a horizontal format suited to panoramic view. De Vos would have used aerial perspective to separate foreground detail from the distant city outline. The palette would be dominated by earth tones, grey-blue sky, and the muted greens of the surrounding polder landscape.