For 10 points, name this daimyo whose goal of unifying all of Japan was achieved by his successor Toyotomi Hideyoshi.
This ruler adopted a banner depicting eiraku coins and used an official seal labeled "rule the empire by force." This ruler promoted commerce by abolishing toll barriers and establishing a policy of free markets and open guilds in Kano. This ruler constructed the fortress of Azuchi Castle, ordered the massacre of the warrior monks at Mount Hiei, and defeated Imagawa Yoshimoto at the Battle of Okehazuma. He allied with Tokugawa Ieyasu to win the Battle of Nagashino, but was killed by Akechi Mitsuhide in 1582. For 10 points, name this daimyo whose goal of unifying all of Japan was achieved by his successor Toyotomi Hideyoshi.
This ruler adopted a banner depicting eiraku coins and used an official seal labeled "rule the empire by force.
Oda {Nobunaga} [or Oda {Kippôshi}]