Capitoline Triad
In ancient Roman religion, the Capitoline Triad was a group of three supreme deities who were worshipped in an elaborate temple on Rome's Capitoline Hill, the Capitolium. Two distinct Capitoline Triads were worshipped at various times in Rome's history, both originating in ancient traditions predating the Roman Republic. The one most commonly referred to as the "Capitoline Triad" is the more recent of the two, consisting of Jupiter, Juno and Minerva and drawing on Etruscan mythology. The earlier triad, sometimes referred to in modern scholarship as the Archaic Triad, consisted of Jupiter, Mars and Quirinus and was Indo-European in origin. Each triad held a central place in the public religion of Rome during its time. Juno was protector of women, and she was worshipped under several different names.
Archaic Triad
The original three deities thus worshipped, now more commonly referred to as the Archaic Triad, were Jupiter, Mars and Quirinus. This structure was no longer clearly detectable in later times, and only traces of it could be identified from various literary sources and other testimonies.