조진
Cao Zhen was known for being generous with his personal wealth. In his younger days, he served under his foster father Cao Cao along with Cao Zun (曹遵), a distant relative of his, and Zhu Zan (朱讚), who was from the same hometown as him. Both Cao Zun and Zhu Zan died early. Cao Zhen took pity on their families so he requested permission from Cao Rui to give away parts of his marquisate to Cao Zun and Zhu Zan's sons. Cao Rui issued an imperial decree to praise Cao Zhen for his kindness, and award secondary marquis titles to Cao Zun and Zhu Zan's sons and give them each 100 taxable households.