大延琳本是辽圣宗朝统兵驻军于辽东京辽阳府的渤海籍军官,远祖系唐王朝治下的渤海国大姓皇族。诸多史书皆确载大延琳,乃是渤海开国皇帝大祚荣的七世孙。虽未记出其生年月日,却在多处散记了大延琳于辽太平九年(1029),乘辽圣宗耶律隆绪突然加重东京辽阳府属下渤海遗民税赋,群情激愤之际,拥兵举旗反叛契丹贵族统治的辽王朝,占据辽阳城,组建渤海国,以割据政权争渤海族独立,解脱辽王朝统治剥削和压迫。历时一年 Dai Yanlin this is the Liao Sheng Zongshengbingbing garrison Liaodong Prefecture in Liaodong Prefecture Bohai Army officers, the ancestral Tang Dynasty under the rule of the Bohai Sea surnames. A lot of history books are indeed large Yan Lin, but the founding emperor of the Bohai Sea, the seventh generation of grandchildren. Although he did not record his birth date, he dubbed Dai Yanlin in Liao Taiping nine years (1029) in many places. When Liao Liao, Liao Sheng of Liao Dynasty suddenly aggravated the tax burden of Bohai Sea descendants under Liaoyang Prefecture in Tokyo, , Held their flag against the reign of the Qidan aristocracy Liao dynasty, occupy Liaoyang City, the formation of the Bohai Sea, to secede regimes fight the independence of the Bohai Sea, liberation of the Liao dynasty rule exploitation and oppression. Last year