Maybe I should explain that when you arrive at the map of Belgium with the numbered squares: you click the square you want, for example 170 Seraign. Above the map you the see "Seraign in blue. Click this and you'll arrive in the actual map. With the controls you can move around, zoom, etc...(I think with a right click you can even print). Anyway, if you look at the example, try and find the Rocourt 1746 battlefield as it could be found some 20 years after the battle (just north of Liege).
You can also enter a place name above the map, but best write the modern day version in Dutch or French.
1 hour ago