Also in 413, Liu Bobo believed that his family name should be changed—since his ancestors took on the Liu family name from the Han Dynasty imperial house, believing that one of their female ancestors was a Han princess, but Liu Bobo believed this to be improper. He therefore changed his family name to Helian—intending it to mean that his might was so great that it would, alas (赫 hè) be connected (連 lián) to the heavens. He also ordered the nobles to change their family name to Tiefa (鐵伐), intending it to mean that they were as strong as iron (鐵 tiě) and be able to attack (伐 fá) others.