Is “Verification of the figure's deeds” true?

Official histories such as the 'Annals of Taizong, Volume 2' record: 'In response to the ministers, generals, and soldiers who died in service or were captured by the enemy, their descendants were recorded. On Renwu, the surrendered people from the mountains were moved to Henan Prefecture, Xu, Ru, and other prefectures. On Dinghai, Zhang Qixian, the Privy Councilor, was appointed as Grand Master of Remonstrance and acting Prefect of Daizhou. On Guisi, a great mountain flew from Fujin County in Jiezhou, blocking the river at Longdi Gorge, causing the water to flow backwards and destroying hundreds of li of farmland. On Jiawu, an edict changed the title of Prince Chen, Yuan You, to Yuan Xi.' The historical novel 'Chapter 21' also records this.