 Its inhabitants' occupations included fishing, baking, and milling.In the same year, the Benedictine abbey of Altmünster was founded on the hill behind the castle by Conrad I, Count of Luxembourg.In 1136 when Count Conrad II of Luxembourg died without heirs, the Ardennes-Luxembourg branch became extinct and the county, by order of Emperor Lothair II, passed to Conrad's maternal cousin Henry the Blind from the House of Namur.