Proper noun
Shimazu (plural Shimazus)
A surname from Japanese.
It is said, though, the concept was introduced from the Ryūkyū Kingdom (modern-day Okinawa Prefecture) by Satsuma Lord, Nariakira Shimazu. Source: Internet
Yoshihiro was feared as Oni-Shimazu ("Shimazu ogre") and his nickname spread across not only Korea but to Ming Dynasty China. Source: Internet