In Hellenistic culture, a mural crown identified the goddess Tyche, the embodiment of the fortune of a city, familiar to Romans as Fortuna. The high cylindrical polos of Cybele too could be rendered as a mural crown in Hellenistic times, specifically designating the Mother Goddess as patron of a city. The mural crown became an ancient Romanmilitary decoration that later became a heraldic motif.
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