Onegesius and his brother Skottas were persons of special interest to the Romans in their failed plot to assassinate Attila in 448 or 449 AD, which included Chrysaphius and Hun Edeko, but Onegesius was most of the time away. Priscus recounts ""Since Onegesius was away, I said, he needed to support us, and more his brother, in pursuit of this good business. I said we knew Attila followed his guidance too, but we would not firmly believe the reports about him unless we came to know his power through experience. He replied that no one any longer doubted Attila deemed his words and deeds equal to his brother's. And he immediately mounted his horse and rode to Attila's tent"".