Aongus Olmucach was the 20th Monarch ; in his reign, the Picts again refused to pay the tribute imposed on them 250 years before, by Heremon, but this Monarch went with a strong army into Alba and in thirty pitched battles overcame them and forced them to pay the required tribute. Aongus was at length slain by Eana, in the battle of Carman, B.C. 1409.