Ōkubo Tadachika

He was most known in history for his political career's demise due to the "Ōkubo clan's incidents", which caused him stripped from most of his domains control and exiled by the Shogunate.

[3] Tadachika, witnessed this massacre and testified in his personal journal, Mikawa Monogatari, that "...both mens and womens can [sic] be cut into pieces...".

[6][7] After the Honnō-ji Incident in 1582, he was among high-rank vassal who accompanied Ieyasu in the dangerous journey to escape into Mikawa through Iga Province.

[9] When Ieyasu transferred into Kantō region, he was given control of Hanyu Castle and received domain stipend worth of 20,000 koku in Musashi Province.

The second misfortune befall upon Ōkubo clan was when Tadachika career suffered, as his domains ownership were stripped and exiled.

Furthermore, Ishikawa Tadafusa, who had been suspended due to his involvement in the so-called "Ōkubo affair", was allowed to return in consideration of the meritorious service of Ienari Ishikawa (the father of his adoptive family), and because of his military exploits at the Siege of Osaka, also appointed as the lord of Ōgaki Domain and Zeze Domain.