Jang Song-thaek had been seen as a kind of regent to Kim Jong-un, the young successor to the Kim family dynasty, and was thought to be number two in the regime. But he owed his position to his wife, Kim Kyong-hui, the only sister of Kim Jong-il, Kim Jong-un’s deceased father.
张成泽被视为金氏王朝年轻继承人金正恩的摄政王，朝鲜政权的二号人物。但他的地位是由其妻、金正恩之父金正日唯一的妹妹金敬姬带来的。