Xiangyang (500) — the same event in Book of Southern Qi and History of the Southern Dynasties

Book of Southern Qi: The Prince of Liang, Inspector of Yongzhou, raises a righteous army at Xiangyang; History of the Southern Dynasties: Xiao Yan…

What each source says

The Prince of Liang, Inspector of Yongzhou, raises a righteous army at Xiangyang

雍州刺史梁王起義兵於襄陽
Location: 南齊書卷7 永元2年

Xiao Yan, Governor of Yongzhou, rose in arms at Xiangyang.

雍州刺史蕭衍起兵於襄陽
Location: 南史卷5 永元2年

Place: 襄陽