Sakai Tadatsugu

Sakai Tadatsugu
Sakai Tadatsugu
酒井忠次
	portrait of Sakai Tadatsugu
Daimyo of Yoshida castle
	In office; 1565–1578
Succeeded by	Sakai Ietsugu
Personal details
Born	1527; Mikawa province
Died	December 17, 1596 (aged 68–69); Kyoto
Spouse	Usui
Relatives	Matsudaira Hirotada father-in-law; Tokugawa Ieyasu nephew-in-law;
Nickname	"Boar Slayer" (Inokiri)
Military service
Allegiance	Matsudaira clan; Imagawa clan; Tokugawa clan
Unit	Sakai clan
Commands	Yoshida Castle
Battles/wars	Oda-Imagawa conflict (? - 1560) Siege of Ida castle; Siege of Imahashi castle; Siege of Tawara castle; Siege of Fukutani castle (1556); Siege of Terabe; Siege of Marune; ; Mikawa Ikkō-ikki uprising (1563 - 1564) Battle of Azukizaka (1564); Siege of Yoshida Castle (1564); ; Siege of Kakegawa (1569); Battle of Anegawa (1570); Campaign against Takeda clan (1576-1581) Battle of Mikatagahara; Siege of Yoshida Castle; Battle of Nagashino; ; Journey in Iga (1582); Tenshō-Jingo war (1582) Shinano Province invasion; Battle of Wakamiko; ; Battle of Komaki and Nagakute (1584-1586) Siege of Shimojima castle; Siege of Kanie Castle; ;

Sakai Tadatsugu (酒井忠次; 1527 – 17 December 1596) was a military commander who served Tokugawa Ieyasu in the late Sengoku period as the highest-ranking general in the Tokugawa clan along with Ishikawa Kazumasa. Tadatsugu is also regarded as one of the Four Guardians of the Tokugawa (Tokugawa-Shitennō), along with Honda Tadakatsu, Ii Naomasa, and Sakakibara Yasumasa. He is also included as one of the Tokugawa 16 divine generals (Tokugawa jūrokushinshō). His official title was Sakai Saemon-no-jo Tadatsugu.

Tadatsugu was also allegedly involved in the conspiracy that caused the death of Lady Tsukiyama and her son, Matsudaira Nobuyasu.