History of the Northern Dynasties: He ordered Yang Su, Yang Da and Yuwen Kai to build the Eastern Capital (Luoyang) and filled it with residents…
He ordered Yang Su, Yang Da and Yuwen Kai to build the Eastern Capital (Luoyang) and filled it with residents moved from Yuzhou.
詔尚書令楊素、納言楊達、將作大匠宇文愷營建東京，徙豫州郭下居民以實之
Location: 北史 卷12 大業元年
Yang Su, Yang Da and Yuwen Kai were put in charge of building the Eastern Capital, and residents from the walled towns of Yuzhou were moved there to fill it.
詔尚書令楊素、納言楊達、將作大匠宇文愷營建東京
Location: 隋書 卷003 帝紀 大業1年3月
Place: 洛陽
Show on the map — open History of the Northern Dynasties (Beishi), Annals