Waleran II, Count of Arlon (not count of Limburg): Contemporary records mention him between 1052 (when his parents were still alive) and 1084/5 (long after the apparent death of Udon).
Waleran II, Count of Arlon (not count of Limburg): Contemporary records mention him between 1052 (when his parents were still alive) and 1084/5 (long after the apparent death of Udon).