This might be because Crown Princess He was from a noble family, whereas Empress Dowager Lu's lineage was considered lowly. Emperor Qianfei created her empress on 16 December 465, after having become emperor in 464 after his father Emperor Xiaowu's death. It is not known what happened to her after Emperor Qianfei, a violent and impulsive ruler, was assassinated just 16 days after creating her empress, and Emperor Qianfei was buried with Crown Princess He, without provision for Empress Lu to be buried with him in the future.
Crown Princess He, from a noble family, became empress under Emperor Qianfei in 465. However, Empress Dowager Lu's lineage was considered humble. After becoming emperor in 464 following his father's death, Qianfei elevated her to empress on December 16th of the same year. The circumstances surrounding Empress Dowager Lu's disappearance remain unclear, as she vanished shortly after Emperor Qianfei was assassinated just sixteen days later.