Complex sentence: He then offered his daughter Lü Zhi's hand in marriage to Liu Bang and they were wed. Lü Zhi bore Liu Bang a son (Liu Ying, the future Emperor Hui) and a daughter (the future Princess Yuan of Lu).
Split into simpler sentences: He then offered his daughter Lü Zhi's hand in marriage to Liu Bang. After they were wed, Lü Zhi bore Liu Bang a son Liu Ying (the future Emperor Hui) and a daughter (the future Princess Yuan of Lu).