Third Sacred War
The Third Sacred War (356–346 BC) was fought between the forces of the Delphic Amphictyonic League, principally represented by Thebes, and latterly by Philip II of Macedon, and the Phocians. The war was caused by a large fine imposed in 357 BC on the Phocians by the Amphictyonic League (dominated at that moment by Thebes), for the offense of cultivating sacred land; refusing to pay, the Phocians instead seized the Temple of Apollo in Delphi, and used the accumulated treasures to fund large mercenary armies. Thus, although the Phocians suffered several major defeats, they were able to continue the war for many years, until eventually all parties were nearing exhaustion. Philip II used the distraction of the other states to increase his power in northern Greece, in the process becoming ruler of Thessaly. In the end, Philip's growing power, and the exhaustion of the other states, allowed him to impose a peaceful settlement of the war, marking a major step in the rise of Macedon to pre-eminence in Ancient Greece.
Third Sacred War
In response to Philomelos's retreat, Pammenes ordered the Amphictyonic force to cross into Phocis as well, probably by the Fontana pass, in order to prevent Philomelos marching on Boeotia. The two armies converged on Tithorea (whose acropolis, Neon, gives the battle its name), where the Amphictyons brought the Phocians to battle. Details of the battle are scant, but the Amphictyons defeated the Phocians, and then pursued the survivors up the slopes of Mount Parnassos, slaying many. Philomelos was injured, and rather than risk capture, threw himself off the mountain, falling to his death. Onomarchos, who was second in command, managed to salvage the remainder of the army, and retreated to Delphi, whilst Pammenes retired to Thebes with the Boeotian army.