Prince Riyan Ambrai XI, the former ruling prince of Ossetia, held one of the longest reigns of any monarch of Ossetia, lasting fifty-two years. He was born in 703 to Prince Deniv Ambrai X and the Princess-Consort Ianthe, their second child. His childhood was typical for an Ez'rei - at the age of eight, he was sent away to a private school until the age of fifteen, and a year later he joined the Royal Cavalry before moving on again at the age of eighteen, when he joined the prestigious 127th Infantry Unit. At the age of twenty, as per tradition, he left military service and was granted Wentyn Castle by his father to be his main residence. However, Deniv's reign was relatively short, due to the length of his predecessor Elsen's reign before him, which was of a similar length to what Riyan's