The armorial chart of Zangrius was first published in the 81st volume (1964) of the De Nederlandsche Leeuw by F. J. van Ettro. He maintains that the present-day hatching system was invented by Zangrius. The historical background for the coming into existence of the armorial chart was the 6 March 1598 edict of the Spanish king Philip II who detached the Low Countries in his testament from Spain and gave independence to the Netherlands on the occasion of the marriage of his daughter Infante Isabella to archduke Albrecht Habsburg who served as the governor of the province since 1596. The princely consorts marched across Brussels ceremoniously on 5 September 1599. As Albrecht Habsburg died in 1621 without heirs, the country returned to the Spanish crown, as was stated in the treaty. (For another engraving from 1623, portraying Albrecht's funeral procession, see the picture taken from Jacob Franquart.) Albrecht's proclamation of the sovereignty was illustrated by numerous armorial charts published by several cities and noblemen of the Low Countries, and the armorial chart of Zangrius held in the Helmond Castle-Townhall is one of them.