《资治通鉴·陈纪·陈纪十》
壬申，后梁国主亲自到长安朝见隋天子，头戴通天冠，身穿深红色的纱袍，在郊外受到迎接时面北而立。
壬申，梁主入朝于隋，服通天冠、绛纱袍，北面受郊劳。
In Ren shen year, the master of the Houliang nation personally went to Chang’an to attend an imperial audience with the Sui emperor. He wore a Tongtian crown and a dark red gauzy robe. He stood facing north when he was received in the suburbs.