Emperor Wen of Han (202-157 BC), the fourth emperor of the Han Dynasty, reigned 180-157 BC; personal name 刘恒 liú​héng, son of Emperor 刘邦 liú​bāng. He is known for his benevolent rule and frugal living, which contributed to the period of peace and prosperity known as the 文景之治 wén​jǐng​zhī​zhì