《旧唐书·列传·卷一百三十四》
肃宗在东宫时，称其为二兄，诸王公主皆称呼 阿翁 ，驸马们称其为 爷 。
肃宗在春宫，呼为二兄，诸王公主皆呼 阿翁 ，驸马辈呼为 爷 。
When Emperor Suzong was an imperial prince, he called him Second Elder Brother, and the other imperial princes and princesses all called him Granduncle, and the imperial sons-in-law called him Lord.