Hiraiwa Chikayoshi

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{{nihongo|Hiraiwa Chikayoshi|平岩 親吉||1542 – February 1, 1611}} was a Japanese daimyō of the early Edo period. He ruled the Inuyama Domain. According to legend, he was involved in a 1611 plot by Tokugawa Ieyasu to assassinate Toyotomi Hideyori, son and intended successor of Toyotomi Hideyoshi, through use of a poisoned manjū. Though the story has been historically discounted, it remains immortalized in a kabuki play.

In 1576, he assassinate Mizuno Nobumoto, on the order of Tokugawa Ieyasu, who in turn instructed the assassination on the base that Nobumoto were conspiring with the enemies.{{cite web |author1=Watanabe Daimon |title=平岩親吉が泣く泣く水野信元を斬り捨てた事情 |url=https://news.yahoo.co.jp/expert/articles/483b205f2a02a577dd2659e73c8480a8237b459e |website=Yahoo Japan Experts |publisher=渡邊大門 無断転載を禁じます。 © LY Corporation |access-date=18 June 2024 |language=Ja |date=2023}}