Shadovar was an officially sanctioned colony of Pian en Luries, but it was then weak enough that it could not provide any real support to the realm. It was traitors from Pian en Luries (after a failed rebellion) who split off D'Hara, which then absorbed its parent realm Shadovar.
Fissoa was an offshoot of Madina, not Luria. Alanna claimed it as part of the Empire for a time due to their surrender treaty, which was abrogated by the nobility once they learned that their Grand Duke had signed it without their knowledge.