Tokugawa Tadanaga

Tokugawa Tadanaga (徳川 忠長, 1606 – January 5, 1634) was a Japanese daimyō of the early Edo period.

The date of his birth is uncertain, and is variously given as May 7, June 1, and December 3.

Blessed with military and intellectual prowess and a generosity of spirit, he received support from his mother, Oeyo (or Sūgen'in), who favored him over her other son Takechiyo (the future Iemitsu) to become the third shogun.

Just after the death of their father shogun Hidetada, Iemitsu accused his brother, already under house arrest in Kōfu, of insanity, stripped him of all possessions and offices, leaving him to commit seppuku.

The Suruga Dainagon Residence was close to Honmaru enceinte of Edo Castle to the northwest, and is depicted on the upper right side of the "View of Edo" folding screens from the 17th century.