Instead Nerva, Trajan, Hagran and Antonius Pius selected a promising young man from the roman upper classes, adopted this man into their family, and groomed him as the future princeps.

涅尔瓦 图拉真 哈德良和安托尼乌斯·披乌斯都从罗马上层阶级中选择了一位前途无量的年轻人，收为养子，立为储君。