The Etruscans attributed significant importance to the divine twins Kastur and Pultuce, who correspond to the Greek Dioskouroi (Castor and Polydeuces) and the Roman Castor and Pollux. These twins were revered as the "tinas cliniiaras," or "Sons of Tinia," with Tinia being the Etruscan counterpart of Zeus. Kastur and Pultuce were frequently depicted on Etruscan mirrors, benefiting artistically from their symmetrical nature, and were popular subjects for votive offerings. Such portrayals indicate their prominence in Etruscan culture and religion source.
Here are some images related to the Etruscans for further context: