《北史·本记·卷一》
十二月十五日，封卫王仪的儿子拓跋良为南阳王，晋封阴平公烈的爵位为王爵，改封高良王乐真为平阳王。
十二月戊戌，封卫王仪子良为南阳王，进阴平公列爵为王，改封高凉王乐真为平阳王。
On the fifteenth day of December, Tuoba Liang, the son of Prince Yi of Wei, was enfeoffed as Prince of Nanyang. The title of Marquis Lie of Yinping was upgraded to a princely title, while the Prince of Gaoliang and Lezhen had his enfeoffment changed to the Princedom of Pingyang.