Prince Qin of the Second Rank (勤郡王) was a Qing dynasty princely peerage.
The peerage was created in 1684 for Yunduan, Nurhaci's great-grandson and son of Prince An of the Second Rank Yolo.
As Prince Qin of the Second Rank peerage was not given iron-cap status, each successive bearer of the title would hold diminished ranks vis-a-vis his predecessor.
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