Koloneia on the Lykos

There was a certain fortress in that region erected by men of ancient times on the crest of a precipitous hill, which in early times Pompey, the Roman general, captured; and becoming master of the land by his victories, he strengthened this town materially and named it Coloneia.¹.

See:

1.  Procopius De Aedificiis 3.4.6-7 - http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Procopius/Buildings/3*.html
2. Sam Topalidiss, Formation of the First Greek Settlements in the Pontos - http://pontosworld.com/index.php/pontus/history/articles/95-formation-of-the-first-greek-settlements-in-the-pontos

References

1. ↑Procopius De Aedificiis 3.4.6