Princedom of Jin (晋王) was a princely peerage created by Hongwu Emperor for his third son, Zhu Gang.
Generation poem.
The generation poem given by the Hongwu Emperor was:"济美钟奇表，知新慎敏求，审心咸景慕，述学继前修" ;br ;
Ji Mei Zhong Qi Biao, Zhi Xin Shen Min Qiu, Shen Xin Xian Jing Mu, Shu Xue Ji Qian XiuThe generation poem was used until "shen" (审) generation, which was the same generation as that of Tianqi Emperor and Chongzhen Emperor.
Princedom of Jin.
Zhu Gang's fief was located in Taiyuan Prefecture of Yushan (于山)
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Cadet lines.
Prince of Pingyang.
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Prince of Qingcheng.
The peerage was created for Zhu Jixuan, Zhu Gang's fourth son. The fief was located in Fen Prefecture ;templatestyles src="Tree list/styles.css" / ;
Prince of Ninghua.
The peerage was first created in1404 for Zhu Jihuan. ;templatestyles src="Tree list/styles.css" / ;
Prince of Yonghe.
The peerage was created for Zhu Jilang in 1403. The fief was located in Fenzhou, Shanxi.
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Prince of Guangchang.
The peerage was created in 1402 for Zhu Jihe, Zhu Gang's seventh son. The fief was located in Taiyuan prefecture of Shanxi.
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Prince of Jiaocheng.
The peerage was created in 1437 for Zhu Meiyuan, Zhu Jixi's second son, with the fief located in Pingyang prefecture. 
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Prince of Yangqu.
The peerage was created in 1437 for Zhu Meiguang, Zhu Jixi's third son with the fief located in Pingyang prefecture.
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Prince of Xihe.
The peerage was created for Zhu Meizhun, Zhu Jixi's fourth son in 1435 with the fief located in Pingyang prefecture.
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Prince of Fangshan.
The peerage was created for Zhu Meiyuan, Zhu Jixi's fifth son in 1437.
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Prince of Linquan.
The peerage was created for Zhu Meiyong, Zhu Jixi's sixth son in 1437.
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Prince of Yunqiu.
The peerage was created for Zhu Meiyu, Zhu Jixi's seventh son in 1442 with the fief located in Pingyang prefecture.
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Prince of Ninghe.
The peerage was created for Zhu Meibi, Zhu Jixi's eighth son in 1437.
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Prince of Hedong.
The peerage was created in 1448 for Zhu Zhonghui, Zhu Meigui's third son.
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Prince of Yining.
The peerage was created in 1458 for Zhu Qiying, Zhu Zhongxuan's second son. 
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Prince of Hezhong.
The peerage was created for Zhu Qirong, Zhu Zhongxuan's third son, in 1465. 
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Prince of Xiangyin.
The peerage was created in 1469 for Zhu Qiying, Zhu Zhongxuan's fourth son.
Prince of Jing'an.
The peerage was created for Zhu Biaozhi, Zhu Qiyuan's fourth son, in 1511.
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Prince of Jingde.
The peerage was created in 1510 for Zhu Biaozhi, Zhu Qiyuan's fifth son. 
Prince of Xingze.
The peerage was created in 1511 for Zhu Biaohuan, Zhu Qiyuan's sixth son.
References.
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