《汉书·传·武五子传》
刘意之子哀王刘护嗣立，在位十六年薨，刘护没有儿子，绝了后。
子哀王护嗣，十六年薨，无子，绝。
Liu Yi's son, Crown Prince Liu Hu replaced him as crown prince and reigned for 16 years. Liu Hu had no sons, therefore, this succession was cut off.