Emperor Zhenzong of Song

Emperor Zhenzong was the third emperor of the of China. He reigned from 997 to 1022. Zhenzong was the third son of . His personal name was Zhao Heng and his temple name Zhenzong means "True Ancestor".

Zhenzong's reign was noted for the consolidation of power and the strengthening of the dynasty. The country prospered, and its military might was further reinforced. However, it would also mark the beginning of a foreign policy towards the in the north that would ultimately result in humiliation. In 1004, the Khitan waged war against the Song empire. Zhenzong, leading his army, struck back at the Khitan. Despite initial successes, in 1005 Zhenzong concluded the Shanyuan Treaty. The treaty resulted in over a century of peace, but at the price of the Song dynasty agreeing to an inferior position to the Khitan, and also agreeing to pay an annual tribute of 100,000 ounces of silver and over 200,000 bolts of silk. The admission of inferiority would come to plague the foreign affairs of the Song dynasty, while the payments slowly depleted the empire's coffers.

Zhenzong founded the world's most celebrated at Jingdezhen in 1004, which continued to produce porcelain for China's imperial use until the fall of the Qing Dynasty 900 years later. He was also responsible for ordering the shipment of 30,000 bushels of quick-maturing rice seed from the to the lower basin in 1011-1012, improving agriculture.

Zhenzong stressed the importance of Daoism at Court. It was during his reign that the so-called Heavenly Texts, which glorified the Zhao family, were allegedly discovered. This was followed up by Imperial sacrifices carried out at Mount Tai. From 1013-1015 he issued official decrees deifying the Jade Emperor as the highest ruler of Heaven.