The Fourth Macedonian War ( 150 BC to 148 BC ) was fought Hostile_encounter between the Roman Republic and a Greek uprising led by the Macedonian pretender to the throne Andriscus .

The members of the Grand Alliance , Holy Roman Empire , England , the Netherlands , Pro-Habsburg Spain , Portugal and the Savoy , had allied Collaboration to prevent Preventing_or_letting the unification of the French and Spanish thrones by supporting Supporting the claim Statement of the Habsburg pretender Archduke Charles VI of Austria as Charles III of Spain .