Tokugawa Hidetada

Tokugawa Hidetada's army attacked Ueda Castle, defended by Sanada Masayuki and Nobushige, but failed to take it and was delayed on its westward march.

After Sekigahara, Sanada Masayuki and Nobushige surrendered Ueda Castle to the Tokugawa side, and the castle was dismantled.

Tokugawa Ieyasu received appointment as seii taishōgun at Fushimi Castle, marking the establishment of the Edo shogunate.

At Fushimi Castle, Tokugawa Ieyasu transferred the shogunate to Hidetada, demonstrating that the office would be inherited within the Tokugawa family.

The shogunate banned Christianity in territories under its direct control, advancing a religious policy that led to nationwide prohibition.

Triggered by the Hōkōji bell inscription incident, Tokugawa Ieyasu ordered the daimyo to take the field, and the Tokugawa forces—said to number around 200,000—besieged Osaka Castle. The outer rampart and Sanadamaru, built by Sanada Nobushige, repelled the Tokugawa assault, but a truce was reached on December 19, and the outer moat and rampart were filled in before the summer campaign the following year.

Osaka Castle fell, and Toyotomi Hideyori and Yodo-dono died by suicide, bringing the main Toyotomi house to an end.