In the Middle Ages, the continuation of River Waal after its confluence with River Meuse, now known as Boven Merwede and Beneden Merwede, was also called Waal.
In the Middle Ages, the name "Waal" continued after the confluence with River Meuse. The stretch now known as Boven Merwede, Beneden Merwede and Noord was also called Waal.