Greek, Greek Mythology, Roman Mythology, Late Roman
Examples: Dimos, Kalliope, Nikolaos, Theodotus, Castor, Hecuba, Nausicaa, Nox, Veritas, Pomona
Reasoning: The connection is clear, but mixing it with Roman mythology and in particular late Roman names gives a much wider pool from which to choose.
Surname Options: These are most often a reference to the Heroic Champions of their lineage who has fulfilled the ultimate goal of Kairos citizens and been turned into a Kollosus, but if a character does not claim such a link, they most often use their occupation to indicate the way in which they serve their nation.
For example – “Kalliope Sextus of the Line of Nox”, “Pomona Triarch Scions of Prospero”, “Nausicaa Decius of the House of Kalliope”, “Hecuba the Strategos”, “Castor the Mason”