Background
Oguri Tadamasa was born in 1827. He was the son of Tadataka.
Oguri Tadamasa was born in 1827. He was the son of Tadataka.
In 1860, he accompanied Masaoki Shimmi and Norimasa Muragaki, Shogunate ambassadors, who went to the United States to conclude a treaty of friendship. While in the United States, he studied gold and silver evaluation system. After returning to Edo, the gold coin of the Shogunate was improved at his recommendation.
He was appointed Magistrate of Foreign Affairs, then Magistrate of the Army and Navy. When Shogun Yoshinobu Tokugawa returned to Edo after his defeat in Osaka (1868), he insisted on waging war against the Imperial forces and was discharged. He retired to Gonda Village in Kozuke (Gumma Prefecture) and trained peasant troops against emergency. When Tomomi Iwakura, Governor General of the Tosando Area, led his Imperial forces to the Kanta District, Iwakura ordered the lords of Takasaki, Obata and Annaka (all in Gumma Prefecture) to attack Tadamasa. Although Tadamasa surrendered, he was eventually beheaded.
Oguri Tadamasa was a man of integrity, he often expostulated with his superiors fearlessly.