Xiahou Shang
Xiahou Shang was so upset by his concubine's death that he fell sick and his health started deteriorating. After burying his concubine, he stayed indoors all the time and refused to meet anyone. When Cao Pi heard about it, he remarked, "Maybe Du Xi had good reason(s) to look down on (Xiahou) Shang." Despite this incident, Cao Pi still highly favoured Xiahou Shang because he was a close childhood friend.