参考资料：明代職官中英辭典 Chinese-English Dictionary of Ming Government Official Titles
https://escholarship.org/uc/item/2bz3v185
比如：
21皇太子 huang tai zi Heir Apparent
22 皇太子妃 huang tai zi fei Consort of the Heir Apparent
23 皇太子嬪 huang tai zi pin Concubine of the Heir Apparent
24 皇太孫 huang tai sun Imperial Grandson-heir
25 皇太孫妃 huang tai sun fei
Consort of the Imperial Grandson-heir
26 皇太孫嬪 huang tai sun pin Concubine of the Imperial Grandson- heir
三師三少 Three Preceptors and Three Juniors
27 太子三師 tai zi san shi
Three Preceptors of the Heir Apparent alt. 東宮三師 dong gong san shi; 東宮 三太 dong gong san tai
28 太子太師 tai zi tai shi
Grand Preceptor of the Heir Apparent
29 太子太傅 tai zi tai fu
Grand Mentor of the Heir Apparent
30 太子太保 tai zi tai bao
Grand Guardian of the Heir Apparent alt. 宮保 gong bao
31 太子三少 tai zi san shao
Three Junior Counselors of the Heir Apparent
alt. 東宮三少 dong gong san shao
32 太子少師 tai zi shao shi
Junior Preceptor of the Heir Apparent alt. 宮師 gong shi
33 太子少傅 tai zi shao fu
Junior Mentor of the Heir Apparent
34 太子少保 tai zi shao bao
Junior Guardian of the Heir Apparent