The great Japanese warlord Oda Nobunaga is often depicted in fiction as wearing one of these nanban-style breastplates because of his interest in European trade and artifacts. I don't know that there's any contemporary evidence for him wearing one, but it's an interesting bit of media trivia!
https://commons.wikimedia.org/wiki/File:%E5%8D%97%E8%9B%AE%E8%83%B4%E5%85%B7%E8%B6%B3.jpg
The great Japanese warlord Oda Nobunaga is often depicted in fiction as wearing one of these nanban-style breastplates because of his interest in European trade and artifacts. I don't know that there's any contemporary evidence for him wearing one, but it's an interesting bit of media trivia!