Complex sentence: Their territory was called Toxandria, Toxiandria or Taxandria, a name which survived into the Middle Ages, and it was roughly equivalent to the modern Campine (Dutch "Kempen") region of the southern Netherlands and northeastern Flanders.
Split into simpler sentences: Their territory was called Toxandria, Toxiandria or Taxandria, a name which survived into the Middle Ages. It was roughly equivalent to the modern Campine (Dutch "Kempen") geographical region of the southern Netherlands and northeastern Flanders.