In this work the cult of the Capitoline Triad is examined from a viewpoint that varies from the traditionally public and official one. A review of its archaeological and epigraphic sources shows how the devotion to the three divinities also permeated the private sphere of individuals in addition to the public or collective events. Although the Capitoline cult lost its pre-eminence during the Imperial age, it remained a clear symbol of tradition, adopted to reassert identity or to display self-satisfaction and power.