Perceiving that there were divisions and jealousies in the ranks of his opponents between Catholic and Protestant, Fleming and Walloon, he set to work by persuasion, address and bribery, to foment the growing discord, and bring back the Walloon provinces to the allegiance of the king.
At the revocation of the Edict of Nantes he retired to Rotterdam, where he was for some years preacher at the Walloon church; in 1695 the elector of Brandenburg appointed him pastor and professor of philosophy, and later inspector of the French college at Berlin, where he enjoyed considerable reputation as a representative of Cartesianism and as a student of physics.
Ath is also well known in Hainaut for its annual fete called le jour de ducasse - ducasse being the Walloon word for kermesse (fete).
Among the provinces Walloon Belgium is better instructed than Flemish, Luxemburg coming first, followed by Namur, Liege and Brabant in their order.
Heinsius (1641-1720) secured his election as one of the pastors of the Walloon church at the Hague, intending to employ him mainly in civil affairs.
The primatial see was placed at Malines (Mechlin), having under it Antwerp, Hertogenbosch, Roermond, Ghent, Bruges, and Ypres constituting the Flemish province; the second archbishopric was at Cambray, with Tournay, Arras, St Omer, and Namur, - the Walloon province; the third at Utrecht, with Haarlem, Middleburg, Leeuwarden, Groningen and Deventer, - the northern (Dutch) province.
This feeling was widespread throughout the Walloon provinces, and found expression in the League of Arras (5th of January 1579).
This class of furnace is usually known as an open fire or hearth, and is represented in a more advanced stage of development by the Catalan, German and Walloon forges formerly used in the production of malleable iron.
Further, one-third of the Belgian provinces was inhabited by a Walloon population divided from the Flemings by racial characteristics and their use of a Romance instead of a Teutonic dialect.
In the Walloon orphanage are some interesting pictures by van der Helst and others.