Northern-Wèi historian, zì Yànluán 彥鸞, of Qīnghé Wǔchéng 清河武城 (in modern Shāndōng), of the great Northern Wèi Cuī clan. He served as Zhōngshū shìláng 中書侍郎, Sǎnqí chángshì 散騎常侍, and other senior court positions; his biography is in Wèishū 67. He is famed exclusively for his great work the Shíliùguó Chūnqiū 十六國春秋 KR2i0005 in 102 juàn — a magisterial assemblage of the lost dynastic histories of the Sixteen Kingdoms (304–439), the more than twenty short-lived dynasties that had ruled North China and the northwest before the Northern Wèi reunification. He worked on it for twenty years, from Jǐngmíng 景明 1 (500) to Zhèngguāng 正光 3 (522), encountering both political danger (his choice to date events by the southern Jìn / Sòng reign-names was sensitive at the Tuòbá court) and the practical difficulty of finding the now-vanished primary histories of, e.g., the HòuZhào or the QiánYān. He completed the book just before his death; his son Cuī Zǐyuán 崔子元 presented it to the throne. The book was preserved through the Táng (the Jìnshū Zǎijì of 644 is, in effect, an abridgment of it) and was lost in the early Southern Sòng. The catalog meta gives fl. 513–524, marking the late stage of his composition. CBDB id 48191 carries no dates; lifedates 478–525 follow Wilkinson and the Wèishū biography.