《明史·志·卷三十六》
一品官坟墙高九尺，二品官到四品官各递减一尺，五品官四尺。
一品坟墙高九尺，二品至四品递杀一尺，五品四尺。
The tomb walls of the first-rank official are 9 chi high, and it decreases by 1 chi for each rank from the second to the fourth rank, and the fifth rank is 4 chi.