《旧五代史·其它·僭伪列传二》
祖先是彭城人，祖父刘仁安，在唐朝任潮州长史，于是迁家住到岭南。
其先彭城人，祖仁安，仕唐为潮州长史，因家岭表。
His ancestors were from Pengcheng. His grandfather Liu Renan served as the prefect of Chaozhou during the Tang Dynasty, and thus moved to Lingnan.