《旧唐书·本纪·卷十五》
六月二十一日，任命左丞孔癸戈为华州刺史、潼关防御使、镇国军使等。
丙申，以左丞孔戣为华州刺史、潼关防御、镇国军等使。
On June 21, Kong Kuigo, the Left Chancellor, was appointed the Prefect of Huazhou, the Defense Commissioner of Tongguan, and the Commissioner of Zhengu Army, etc.