I am playing as a Japan Daimyo which basically is a vassal of Japan with the speciality that a Daimyo can declare war on and annex other Daimyos. However it is impossible to vassalise them, because they are a subject nation of Japan.

Now I noticed that I can release them as vassals after completely annexing them. Will this really make them my vassal (I doubt it considering that I am a subject nation myself) or will this make them independent from me again and "only" a vassal/Daimyo of Japan?

I always played under the assumption that a vassal cannot have vassals of his own, so I am a bit confused what will happen.

I would try it, but I am playing Ironman and don't really want to screw up my Achievement hunt for "The Chrysanthemum Throne".

  • In EU3 and earlier, I know it was possible for vassals to have vassals. I haven't tested in EU4.
    – mmyers
    Jan 28, 2014 at 20:17

2 Answers 2


I just tested this under the latest version of 1.9 on non-Ironman by playing as a Japanese daimyo, annexing another daimyo through console, and releasing them through the "Release Subjects" dialog. They remain your vassals, even after monthly/yearly ticks.

Hosokawa is a vassal of Yamana.

  • If you say "they remain your vassals", who is "they"? Your vassal or the vassal of your vassal?
    – magnattic
    Dec 19, 2014 at 13:19
  • If you're a daimyo and a vassal of Japan, and you release a daimyo from provinces you own, the released daimyo remains your vassal, and not a vassal of Japan. Dec 19, 2014 at 17:59
  • Ah ok, I get it now. My comment didn't make much sense. Has been some time since I posted the question and I got confused about the situation. ;) Thanks for doing the research!
    – magnattic
    Dec 19, 2014 at 18:05
  • No worries! (Slightly) better late than never, right? Dec 19, 2014 at 18:13

As of patch 1.4, the released daimyos will become subjects of Japan.

If you are a daimyo and force another daimyo to release another daimyo, then that daimyo will become a proper vassal of Japan now.

Source: Patch 1.4 release notes at EU4Wiki.

  • 3
    Yep, saw that too. That doesn't really answer what happens if you release them yourself though. Forcing an enemy to release a country doesn't make them their Vassal either, so there is a substantial difference between peacefully releasing someone and doing so by war.
    – magnattic
    Jan 14, 2014 at 17:32

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