var. links at de.wikipedia.org/wiki/Hans_Vredeman_de_Vries ; www.artcyclopedia.com/artists/vredeman_de_vries_hans.html
AKL ; Introd. by Adolf K. Placzek to J. V. de V.: Perspective (New York 1968) ; "V. e V., H.". Winkler Prins encyclopedia (8 ed.): 1975 ; Piet Lombaerde: V. de V. & "Artes Mechanicae" revisited (2005) ;
Architet-painter-engraver, active in Dutch Friesland, then until 1570 in Antwerp as city architect & fortification expert; constructs Grachten in Wolffenbüttel;also workd as architect in German lands, tried top form a painter's guild in Danzig; since 1601 back in the Netherlands.