Empress Lu was fifteen years younger than Liu Bang.
Liu Bang and Lu Zhi had two children. Their son was Liu Ying, also known as Emperor Hui of the Han Dynasty, the second emperor of the Western Han Dynasty. His daughter was Princess Lu Yuan, who married the King of Zhao, Zhang Ao. This information can be found in the search results provided.
Liu Bang's descendants now make up about 2% of China's population. According to the statistics of Liu Ji's descendants, there were no less than 4.5 million descendants of Liu Ji at the beginning of this century. However, due to a certain error in the estimation of the number of descendants of Liu Bang, it was impossible to give an exact number.
Liu Bang had a total of nine children, eight of whom were sons and one was a daughter. Liu Bang's sons included his eldest son, Liu Fei (King of Qi), his second son, Liu Ying (Emperor Hui of Han), his third son, Liu Ruyi (King of Zhao), his fourth son, Liu Heng (Emperor Wen of Han), his fifth son, Liu Hui (King of Liang), his sixth son, Liu You (King of Huaiyang), his seventh son, Liu Chang (King of Huainan), and his eighth son, Liu Jian (King of Yan). Liu Bang's daughter was Princess Lu Yuan.
Lu Zhi and Liu Bang had a total of eight sons. Among them, Liu Ying, who was born to Lu Zhi, was the eldest son of Liu Bang, who inherited the throne and became Emperor Gao of Han. Lu Zhi also had an adopted son, Liu Heng, and the eldest son of Liu Bang and the Cao family, Liu Fei. When Lu Zhi was in power, he had harmed Liu Bang's sons, including Liu Ruyi, Liu Heng, Liu Hui, Liu You, and Liu Chang. However, she let Liu Fei go. There was no clear explanation in the documents as to why Liu Fei was spared.