Pythius interpreted an eclipse as a bad omen.
A hidden message warning of this king's activities was discovered when the Spartans, on the suggestion of their queen, scraped away the wax from a pair of blank writing tablets. This man had the eldest son of Pythius sawn in half aぺer Pythius interpreted an eclipse as a bad omen. While in exile, Demaratus (deh-mah-RAT-us) fought for this king, who once paused a march to admire a plane tree that he cloaked in golden jewelry. A bribe convinced Eurybiades (yu-ree-BY-ah-dees) to 食ght this man's navy at Artemisium (ar-teh-MISS-ee-um); that navy was later defeated by Themistocles while this king watched from a throne on Mount Aigaleo ("eye"-gah-LAY-oh). This king built pontoon bridges across the Hellespont during a campaign in which his forces lost the Battle of Salamis (SAL-uh-miss). For 10 points, name this king of Persia who defeated Leonidas at Thermopylae (ther-MAH-poh-lie) during his invasion of Greece.
A hidden message warning of this king's activities was discovered when the Spartans, on the suggestion of their queen, scraped away the wax from a pair of blank writing tablets.
Xerxes I [or Xerxes the Great; prompt on "Xerxes"]