Taozhu (528) — the same event in History of the Northern Dynasties and Book of Wei

History of the Northern Dynasties: At Taozhu, Erzhu Rong slaughtered Empress Dowager Ling, the infant emperor, Chancellor Yuan Yong, Prince of…

What each source says

History of the Northern Dynasties (Beishi), Annals · AD 528 · 陶渚

At Taozhu, Erzhu Rong slaughtered Empress Dowager Ling, the infant emperor, Chancellor Yuan Yong, Prince of Gaoyang, and about two thousand ministers and nobles (the Heyin Incident).

榮以兵權在己,遂有異志。乃害靈太后及幼主
Location: 北史 卷5 永安元年

Book of Wei (Weishu), Imperial Annals · AD 528

The Heyin Incident: Erzhu Rong massacred Empress Dowager Ling, Liu Zhou, the Prince of Gaoyang, and more than two thousand other officials and nobles.

榮以兵權在己,遂有異志,乃害靈太后及幼主,次害無上王劭、始平王子正,又害丞相高陽王雍、司空公元欽、儀同三司元恒芝、儀同三司東平王略、廣平王悌、常山王巶、北平王超、任城王彝、趙郡王毓、中山王叔仁、齊郡王溫,公卿已下二千餘人。
Location: 魏書卷10·永安元年

Show on the map — open History of the Northern Dynasties (Beishi), Annals