That's correct, it's a long-standing name. However, I thought I'd ask because it has a somewhat modern ring to it. That said, while I'd like to keep it as is, I'm open to changing it because I'll be changing those of her parents, which might make hers anachronistic. Thus, I see the potential name change as more evolution and abbandonment because the original incarnation I roleplayed was sucked into the truly mordern day and likely to have taken Ryuu as an alias to fit with the times because she's not the type to draw undue attention to herself, as a name like Ginchiyo or Naotora would have. Granted, her choice of ring name while wrestling, Shinobi-hime, could've partially explained such a given name.
You have a female daimyo who moonlights as a... wrestler? But you want to make sure your character names are period-appropriate, and know their correct pitch-accent patterns?
Nice gaijin-san, that was me trying to get the character more interactions before merging my several settings into this one cohesive setting. Wrestling's not a thing in the combined setting's Japan because the Sengoku jidai is still ongoing.