His mother was Lady Josaeng , the daughter of Nulji Isageum .
His father was the Galmunwang Kim Seup - bo , who was a grandson of Naemul Isageum .
father 's mother was Lady Josaeng , the daughter of Nulji Isageum .
His father was the Galmunwang Kim Seup - bo , who was a grandson of Naemul Isageum .