Synonyms for Gustavus II (same or very similar meaning)
WordNet sense 1 (king of Sweden whose victories in battle made Sweden a European power; his domestic reforms made Sweden a modern state; in 1630 he intervened on the Protestant side of the Thirty Years' War and was killed in the battle of Lutzen (1594-1632)):
Gustavus, Gustavus AdolphusFrom the ODE community, based on WordNetadd/edit