Yakushiji Nagatada

薬師寺長忠

Yakushiji Clan

Bushō

Settsu Province

Lifespan:  14xx to 8/1 of Eishō 4 (1507)

Other Names:  Yoji, Saburō-zaemon-no-jō

Rank:  bushō

Title:  Governor of Aki

Clan:  Yakushiji

Bakufu:  Muromachi – Deputy military governor of Settsu

Lord:  Hosokawa Masamoto → Hosokawa Sumiyuki

Father:  Yakushiji Motonaga (or Yakushiji Nagamori)

Siblings:  Motokazu, Nagatada, Teramachi Matasaburō, Akutagawa Nobukata

Yakushiji Nagatada served as a bushō during the Sengoku period.  He was a senior retainer of the Hosokawa clan and the deputy military governor of Settsu Province.

Nagatada is considered to have been the natural son of Yakushiji Motonaga.  Under more recent views, however, he appears to have been the second son of Motonaga’s younger brother, Yakushiji Nagamori.

After the death of Motonaga, Nagatada’s older brother, Yakushiji Motokazu, inherited the headship of the Yakushiji family in addition to the role of deputy military governor of Settsu.  In 1504, Motokazu attempted to back Hosokawa Sumimoto (one of the adopted sons of Hosokawa Masamoto) in a rebellion whereupon Nagatada suppressed him.  Owing to these contributions, Nagatada is deemed to have succeeded to the headship of the family and the role of deputy military governor of Settsu.  Based on another theory, the role of the deputy military governor of Settsu was divided with Motokazu serving in this role in the upper districts and Nagatada in the lower districts.  After the failed rebellion by Motokazu, the roles were recombined under Nagatada.

On 6/23 of Eishō 4 (1507), Nagatada conspired with Kōzai Motonaga, Takeda Magoshichi, and others to assassinate Hosokawa Masamoto in an event known as the Lord Hosokawa Incident.  Motonaga is viewed as the ringleader of the assassination.  Nagatada backed Hosokawa Sumiyuki, the first son adopted by Masamoto.  Sumiyuki was born as the last son of Kujō Masamoto, the kanpaku, or Chief Advisor to the Emperor.  Although Masamoto originally adopted Sumiyuki to be his designated heir, he may have gradually come to regret the promise owing to deep opposition within the family toward the prospect of an unrelated person becoming his successor, whereupon he accepted Sumimoto from the branch of the Hosokawa in Awa Province.

Miyoshi Yukinaga was a political opponent of Nagatada who served in an important capacity for Masamoto.  The murder of Masamoto enabled Nagatada to expel Yukinaga and claim the authority of the Hosokawa-Keichō family.

On 8/1, however, Nagatada incurred an attack and was defeated at Ibaraki Castle by Mantokumaru (Yakushiji Kuninaga), Nagatada’s nephew (Motokazu’s son) who was affiliated with Hosokawa Takakuni.  Together with Sumiyuki and Kōzai Motonaga, he was killed in action.  Takakuni subsequently re-divided the role of the deputy military governor of Settsu between Mantokumaru (Yakushiji Kuninaga) and Iwachiyomaru (Yakushiji Kunimori) who were siblings.