《太平广记·卷二百六十七·酷暴一》
先天二年七月三日，元楷以反判之罪被杀，全家人被发配岭南。
先天二年，七月三日，楷以反逆诛，家口配岭南。
On July 3 in the second year of Xiantian, Yuan Kai was killed for the crime of counter-rebellion, and his entire family was exiled to Lingnan.