"I am the beginning and the end. I am luckbinder, spellweaver, and the keeper of secrets. And I am here to build a kingdom. I am Aldenon the Wise, and if you haven't heard of me yet—never can you say the same again." His voice boomed, silencing all. His magic was potent and the hall gave him a wary look. Tenedor accepted him as his advisor that day. Then, when Tenedor the Younger rose to his father's seat, he took Aldenon into service as well. I sat with the mage in many councils and although his magecraft was greater than even the Tevinter magisters, many believed his advice to be folly. He had little appreciation for the hard truths of our lands, they said. Compassion, mercy, justice—they matter not when Teyrn Simeon invades your land, subverts your nobles, and takes what's yours. He grew bitter and impatient with us and ours, and these sentiments were often returned. But others could see he had a vision of something better than the endless petty wars of teyrns and arls.
When Arl Myrddin besieged us, a youth named Calenhad was sent to meet the asp, but all expected a treacherous end. Yet the boy returned, to great acclaim, and announced there would be no terms. Aldenon was taken with the "foolhardy honor" the boy displayed and seemed to awaken as from a dark dream. The mage told Tenedor the Younger he would lend his aid for this battle, but after that, he would serve another. Tenedor accepted his resignation with relief more than anything.
By the end of the siege of the Western Hill, Arl Tenedor was no more. It was Calenhad who defeated Myrddin in single combat, and he became Teyrn Calenhad. Aldenon was named his chief advisor.—From The Recollections of Ser Devith, banner knight of King Calenhad
—From Codex entry: Aldenon's Vestments