Lifespan: Tenbun 2 (1533) to Keichō 14 (1609) (?)
Title: Junior Fifith Rank (Lower), Governor of Dewa
Bakufu: Edo bakufu
Lord: Ukita Naoie → Ukita Hideie
Father: Ukita Okiie
Mother: Daughter of Abe Yoshisada
Nursing Mother: Mother of Togawa Hideyasu
Siblings: Naoie, Haruie, Tadaie, sister (wife of Iga Hisataka), sister (wife of Maki Kuninobu)
Children: Motoie (?), Akiie, Sakazaki Daizen, daughter (second wife of Tomita Nobutaka), daughter, daughter (wife of Takahashi Mototane)
Ukita Tadaie served as a bushō from the Sengoku to the early Edo period.
Tadaie was the son of Ukita Okiie and the younger half-brother of a different mother of Ukita Naoie. Tadaie supported his older brother, Naoie, helping Naoie to establish himself. Nevertheless, knowing that Naoie was of a conspiring nature, Tadaie remained vigilant around him, wearing armor under his dress for protection.
In 1578, Tadaie served in lieu of Naoie as the lead commander of the Ukita forces who joined the Mōri in an attack against the Amago at Kōzuki Castle in Harima Province, an event known as the Battle of Kōzuki Castle.
In 1581, Naoie died of illness, and he was succeeded by his eldest son, Ukita Hideie. At the time, Hideie was only ten years old, so Tadaie supported him as a member of the family. In particular, Tadaie served on behalf of Hideie as a commander in numerous battles. He resided at Toyama Castle in Bizen Province. In 1592, Tadaie served as a guardian of Hideie in Hideie’s role as the commander-in-chief of the army in the Bunroku Campaign led by the forces of Toyotomi Hideyoshi on the Korean Peninsula. After this campaign, Tadaie assigned his role as head of a cadet family to his lineal heir, Ukita Akiie (later known as Sakazaki Naomori) and retired.
In 1599, an internal rebellion known as the Ukita sōdō, or Ukita Disturbance, arose in which Hideie was opposed by an elder named Togawa Michiyasu, Akiie (Tadaie’s eldest son), and veterans such as Hanabusa Motohide. Tadaie underwent the rite of tonsure and entered into retirement in Ōsaka, passing away in 1609. Meanwhile, owing to his contributions to the eastern army at the Battle of Sekigahara, Akiie was assigned as head of the Tsuwano domain, whereupon he adopted the name of Sakazaki Naomori and served the Edo bakufu.
In 1616, Naomori triggered the Senhime jiken, or Senhime Incident. Senhime was the eldest daughter of Tokugawa Hidetada, the second shōgun of the Edo bakufu. Senhime was rescued from Ōsaka Castle prior to its capture during the Summer Siege of Ōsaka Castle. The following year, Naomori made a plan to attack a bridal procession and snatch her away. Upon the discovery of this plot, Naomori was dismissed from his duties and committed seppuku.
Theory concerning identity
There is a theory that Ukita Tadaie is the same individual as Ukita Haruie. Tadaie’s father, Ukita Okiie, died of illness within two years of fleeing for protection to Abe Yoshisada of Fukuoka in Bizen. During that time, the daughter of Yoshisada may have had two sons with Okiie. However, records of Tadaie defending Toishi, Kanayama, Numa, and other castles frequently overlap with the records of Haruie. Moreover, in certain accounts, the names are used interchangeably, while the records overlaps in regard to their achievements and the battles in which Tadaie and Haruie participated. In older materials, both men were also referred to as Shichirō-Hyōei. Both Tadaie and Haruie are attributed with praising Naoie by saying that whenever he went outside, he always prepared for death, and wore his armor.