Prince Yi (created 1722)

the thirteenth son of the Kangxi Emperor ; awarded ninth "iron-cap" hereditary status (1686-1730)

Zaiyuan (16 October 1816 – 8 November 1861), formally known as Prince Yi, was a Manchu prince of the Qing dynasty. He was one of the eight regents appointed by the Xianfeng Emperor to assist his successor, the Tongzhi Emperor.