He died during the reign of Marcian and came to power after the death of his uncle Rua and after he killed his intended co-ruler, his brother Bleda.  
His first known action was the negotiation of a treaty at Margus that gained his people a sum of 700 pounds of gold a year.  He died during the reign of Marcian and came to power after the death of his uncle Rua and after he killed his intended co-ruler, his brother Bleda.  His rule was already on the decline before Aetius and a confederation of troops defeated him at Catalaunian Plains, or the Battle of Chalons in 451.  FTP, name this so-called "Scourge of God" and feared ruler of the Huns.
His first known action was the negotiation of a treaty at Margus that gained his people a sum of 700 pounds of gold a year.  
Attila