Roman identity and legitimisation of imperial rule were closely connected to the mythological motive of divine descent. In this context, the myth of Romulus with the encounter between the god Mars and the virgin Rhea Silvia developed its own significance that was available for broader circles within the population of the Roman Empire. It is against this background that Luke 1.26–38 may be read as an alternative foundation narrative that assimilates essential features of the Roman myth of origin in order to reinterpret it christologically.