According to some authors, Zangrius developed the earliest hatching system in heraldry, identical with the present day hatching method, seen on his armorial chart of Brabant. (Jean Baptiste Zangre, "Representation de l'Ancienne et Souveraine Duche de Brabant, ses Villes, Dignitez et Dependences, Comme Lothier, Limborghe et Pays de Outre Meuse", Louvain, 1600. Measures: 49 x 56.3 cm). Though manufactured by Arnold van Rincvelt, it is better known as the armorial chart of Zangrius. The original chart is held by the Helmond Castle-Townhall.