Around 422 BCE, while attending a meeting with the Cult of Kosmos at the Palace of Aphareus, Dimokrates questioned the alliance between the Cult and the Order that had dated back to the era of Xerxes I of Persia. He denounced the Cult's perpetuation of the Peloponnesian War for personal profit and criticized them for allowing the Spartan misthios Kassandra to meddle in their affairs, determining that the Cult's support in the region was not worth what the Order was paying for it. Ultimately, he used the meeting to place the Cult on notice, that it had one final chance to prove its worth.
Unbeknownst to Dimokrates and all those present, their meeting was observed by Kassandra and the Persian Darius. As the meeting drew to an end and the participants parted ways, Dimokrates was waylaid by Kassandra, and slain.
Behind the scenes
Dimokrates, a character in Assassin's Creed: Odyssey's DLC Legacy of the First Blade: Bloodline, shares his name with the 4th century BCE Greek architect who also served as Alexander the Great's technical adviser.