The Battle of the Granicus River

Daily Diodorus
Vol. VIII. Book XVII Ch. 19-21 (Loeb Classical Library)
Read the other posts in this series here

The Headlines
Macedonians and Persians Clash
Black Cleitus Saves Alexander’s Life
Persian Cavalry Routed
Undefended, Persian Infantry Crumble
Alexander Wins First Major Battle of Reign

The Story
Learning of the satrapal army’s approach, Alexander ‘advanced rapidly’ to the Granicus River where he set up his camp on the opposite bank to the Persians. At this point, the satraps had the advantage: Alexander would not only have to cross the river to meet them but climb up the bank on the opposite side before doing so. This would be sure to put the Macedonian phalanx into disorder and make Alexander’s men easy pickings.

Or so you would have thought. At dawn the next day, Alexander lead his men across the river and not only managed to scramble up the bank but was able to deploy it ‘in good order’ before [the Persians] could stop him’.

Now faced with an organised Macedonian army, the satraps deployed their cavalry at the front of their own line. Here is how satrapal army lined up:

Left Wing (flank to centre)

  • Memnon and Arsamenes – each in command of his own cavalry
  • Arsites – in command of the Paphlagonian cavalry
  • Spithrobates – in command of the Hyrcanian cavalry

Right Wing

  • Median cavalry – 1,000 in number / commanded by ?
  • Rheomithres – with 2,000 horse / in command of ?
  • Bactrian cavalry – 2,000 in number / commanded by ?

Centre

  • Various ‘national contingents’

Numbers

  • Cavalry 10,000+
  • Infantry ‘not fewer than’ 100,000

NB The question marks regarding the right wing commanders reflects the fact that I am not clear about what Diodorus is saying here. It may be that Rheomithres was in charge of the Medes and Bactrians but that isn’t the impression I get when I read his text (see below).

We come now to the battle itself. I have broken it down into the following parts to make writing, and – hopefully – reading about, it easier. Do feel free to let me know if you find this arrangement useful or not.

One The Persian and Macedonian cavalry ‘joined battle spiritedly’. Diodorus singles out the Thessalian cavalry for praise. Under the command of Parmenion, it ‘gallantly met the attack of the troops posted opposite’.

Two Alexander, leading ‘the finest of the riders on the right wing’ charged at the Persians and inflicted ‘substantial losses upon them’.

Three The satrapal army ‘resisted [the Macedonian attack] bravely. Spithrobates, Darius’ son-in-law, threw himself at the Macedonians ‘with a large body of cavalry, and… forty companions, all Royal Relatives of outstanding valour’.

Four Seeing the success of Spithrobates’ attack, Alexander turned to meet him.

Five Spithrobates saw Alexander coming and saw an opportunity to end the menace of the Macedonian king once-and-for-all. He threw his javelin at him. It pierced Alexander’s shield and ‘right epomis’ and ‘drove through [his] breastplate’. This sounds serious. The Footnotes tell us, however, that according to Plutarch, Alexander wasn’t injured. Alexander shook the javelin off and drove his spear into Spithrobates’ chest. This movement caused both armies to cry out ‘at [his] superlative display of prowess’.

Six The movement was not a complete success, though. The point of the spear broke and the length recoiled in Alexander’s hand. Spithrobates ‘drew his sword and drove at Alexander. Fatally for him, he was not quick enough. Alexander ‘recovered his grip’ upon the spear and thrust it into Spithrobates’ face.

Seven Spithrobates fell to the ground. Just then, Spithrobates’ brother, Rhosaces, rode up behind Alexander and brought his sword down on the king’s head with such force that ‘it split his helmet’. Despite this, Alexander’s only physical wound was ‘a slight scalp wound’. Before Rhosaces could strike him again, Cleitus the Black ‘dashed up on his horse and cut off the Persian’s arm’.

Eight Diodorus now reports that Spithrobates’ companions, the Royal Relatives, threw their javelins at Alexander. Somehow, he managed to survive this deadly shower and the Relatives next, close-up, attack. Not without harm, though, Diodorus says Alexander suffered – ‘two blows on the breastplate, one on the helmet, and three on the shield’ it being the shield he had taken from Athena’s sanctuary. Back then, things were clearly made to last!

Nine Diodorus now lists some of the Persian commanders who died during the battle. They included Atizyes, Pharnaces (Stateira I’s brother), and Mithrobuzanes who commanded the Cappadocian cavalry contingent.

Ten With ‘many of their commanders’ dead and ‘all the Persian squadrons… worsted’ the Royal Relatives fled from Alexander. Seeing them retreat, other cavalry officers followed them. From what Diodorus says it seems that the flight of the Relatives allowed Alexander to claim the credit for being the ‘chief author of the victory’ in the whole battle (Do you remember how – in Book XVI Ch. 86 – we saw Philip II claim the victory at the Battle of Chaeronea after he put the Athenian-Boeotian soldiers to flight, despite the fact that the real damage had already been done by Alexander?). Diodorus also singles out the Thessalian cavalry again for praise.

Eleven Despite the route of the cavalry, the battle was not over yet. It soon would be, though, for the Persian soldiers were no match for the Macedonian phalanx. As Diodorus notes, they were also rattled by the cavalry’s retreat.

Twelve By the time that the Persian infantry was put to flight, the satrapal army had lost ‘more than ten thousand’ men. ‘[N]ot less than two thousand’ cavalry officers were killed, and 20,000 prisoners taken.

Thirteen Following the battle, Alexander ‘gave magnificent obsequies to the dead, for he thought it important by this sort of honour to create in his men greater enthusiasm to face the hazards of battle’.

Fourteen From the Granicus River, Alexander then marched through Lydia, taking over Sardis. Perhaps having heard of the Macedonians’ success at the Granicus River, Lydia’s satrap, Mithrines, gave up the city, its citadels and their treasuries without a fight.

Comments
If you are familiar with the other Alexander historians, specifically Arrian, you might have noticed that Diodorus gives a different time for Alexander’s crossing of the Granicus. He has it happening at daybreak on the day after the Macedonian army’s arrival at the river; Arrian, on the other hand,  places it in the late afternoon on the day of their arrival.

Diodorus doesn’t explain how on earth the Persians allowed the Macedonians not only to make a successful crossing of the river but make their way up the bank and form up, afterwards. Either he is incorrect regarding what happened or the Persians were negligent. The former is more likely the case as Arrian describes the Persians attacking the Macedonians from the get-go, and his source was someone who was there.

Regarding my uncertainty over who was in charge of the cavalry divisions on the Persian right wing, here are Diodorus’ own words, ‘The right wing was held by a thousand Medes and two thousand horse with Rheomithres as well as Bactrians of like number’.

In the last post we saw that there was rough agreement between our sources over the size of the Macedonian army. This is not the case in regards its Persian opposite. Here are the figures quoted by the Footnotes:

  • Justin 600,000
  • Arrian 20,000 foot, 20,000 horse

There is surely an extra zero or two in Justin’s figure.

During the course of his career Alexander sustained numerous injuries but never came as close to death on the battlefield as he did at the Granicus River. As for Black Cleitus – his timely arrival would not only have implications for Alexander’s life but the spread of Hellenism across the world. If we were compiling a top ten of historically influential Macedonian commanders his intervention here would surely be Number One. In my opinion, the only other officer to come close to him is Ptolemy, for his building of the Museum of Alexandria and the role of the Library (e.g. in the translation of the Septuagint and its patronage of great scientists and writers), but if Rhosaces had landed his blow and killed the Alexander, Ptolemy would never have become king of Egypt in the first place.

Diodorus omits to mention how many Macedonian soldiers died in the battle. The Footnotes give us the other historians say.

  • Justin 9 foot, 120 horse
  • Plutarch 9 foot, 25 horse
  • Arrian 20 foot, 60 horse

Well. All I can say is if Macedonian casualties were really that low then the army was in inspired form that day. Staying at the bottom of the page, the Footnores also give the other historians’ figures for Persian casualties.

  • Plutarch 20,000 foot, 2,500 horse
  • Arrian 1,000 horse + ‘most of the Greek phalanx’ minus 200 who were captured

I’m a little surprised by how quickly Diodorus moves on from the battle. In one line, Alexander is performing his ‘magnificent obsequies’ the next he is on the way through Lydia. If Alexander took the Persian camp maybe Diodorus omitted that on the grounds of repetition – Alexander would do the same to greater effect after Issus (which we will come to in Ch. 35)

Classifieds
Wanted – Darius. Dead or Alive.
Wanted – A new army. Contact Babylon ASAP
For Sale –  Persian Hopes. Going Cheap

Categories: Diodorus Siculus | Tags: , , , , , , , , , , , , , | Leave a comment

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