Editing Arlon (section)

===Middle Ages===
During most of the [[Middle Ages]], the population still used the earlier buildings such as the ''[[thermae]]''.  In 1060, [[Waleran I of Limburg]], Count of [[County of Arlon|Arlon]], built a castle on the Knipchen hill in the centre of the town.

A dynasty of counts of Arlon began with Waleran I, Duke of Limburg. On the death of Duke Waleran III in 1226, Arlon passed to his son from the second marriage, Henry V the Fair, Count of Luxembourg, and became part of the county of Luxembourg. Thus, in the Tournament of Chauvency, his son Henry the Lion bore the title of Marquis of Arlon.

In the 13th century, the only women's [[Cistercians|Cistercian]] abbey known to date was built in [[Clairefontaine Abbey|Clairefontaine]].