Input (grade 13): Limburg's name derives from the fortified castle town known as Limbourg, situated on the river Vesdre in the Ardennes, now in the Walloon province of LiÃ ge.
Output (grade 6): Limburg's name comes from the fortified castle town known as Limbourg, located on the river Vesdre in the Ardennes. This is now the Walloon province of LiÃ ge.