Which preposition to use with pharsalia

in Occurrences 2%

After the battle of Pharsalia in 48, Caesar, aside from the lotus-months in Egypt, pacified the Eastern provinces, then in 46 subdued the senatorial remnants in Africa, driving Cato to his death, and in September of that year celebrated his fourfold triumph with a magnificence hitherto undreamed.

for Occurrences 1%

Columella, writing under the early Empire, urges that the vilicus or overseer should sit at his dinner except on festivals; and Cato the younger would not recline after the battle of Pharsalia for the rest of his life, apparently as a sign that life was no longer enjoyable.

with Occurrences 1%

CRATIPPUS, a Peripatetic philosopher of Mytilene, contemporary of Pompey and Cicero; soothed the sunken spirit of the former after the defeat at Pharsalia with the consolations of philosophy.

Which preposition to use with  pharsalia