And Portugal granted Capo Verde independence even though it was an inhabited island when they "conquered" it
Lithuania never ruled Poland, our young queen needed to get married and a Lithuanian was chosen as her husband hence he became King. Austria-Hungary was formed long after Poland lost it's independence. Yes, we had Poles, Czechs, Hungarians, Swedes, Saxons & French as Kings.
It's the classic bloodline issue that falls across every single Kingdom in Europe. The most powerful Russian Empress was a German, the current English monarchy are Germans too (House of Windsor my ass, the Anglo-Saxons don't rule England since 1066).