Dayinbu of the Tatara Clan

Clan background and enlistment

Dayinbu belonged to the Tatara clan, whose ancestral residence is recorded as Jakumu. He submitted to Nurhaci in 1618, entered the Manchu Plain White Banner, and served as a niru janggin, or company officer. The niru was a foundational unit of banner registration and military organization, with its commander responsible for the people and service obligations assigned to it. Plain White Banner affiliation must be distinguished from the separate Manchu, Mongol, and Han-martial-banner divisions of the same colour.

Military service and death

Dayinbu participated in operations in Liaodong and toward Mongol regions. In 1621 he served in an advance role near Fengjibao and received a military distinction for his service. In 1623 Nurhaci dispatched Abatai and other commanders against the Zharut. Dayinbu, together with Yaxichan, Bo'erjin, and a small cavalry detachment, advanced across the Liao River toward the residence of the leader Ang'an. In the subsequent encounter, Dayinbu was severely wounded by a short spear while resisting Ang'an's attempt to break through and died from his injuries.

His son Ajigenikan and other descendants later received offices and military honours. Their accomplishments under Hong Taiji or after the Shunzhi accession belong to a subsequent generation; they cannot be included in Dayinbu's own military career. Jakumu is preserved here as a historical residence name. Its precise location and later family migration should be checked against historical geographical evidence rather than guessed from pronunciation.