《汉书·传·景十三王传》
河间国断绝五年，成帝建始元年，重立刘元的弟弟上郡库令刘良，造就是河间惠王。
绝五岁，成帝建始元年，复立元弟上郡库令良，是为河间惠王。
After the succession of Hejian was interrupted for five years, Emperor Cheng reinstated Liu Yuan's younger brother Shanggunkuling Liu Liang in the first year of Emperor Jian Shi, which led to the succession of Liu Liang as the Prince of Hejian.