the Disocuri were Castor and Pollux (or Polydeuces), the twin sons of Leda and brothers of Helen of Troy, by Zeus and Tyndareus (Zeus was Pollux's father, Tyndareus was Castor's). They are known collectively in Greek as the Dioskouroi, "sons of Zeus", and in Latin as the Gemini ("twins") or Castores. The twins shared the same mother but had different fathers. Pollux, the son of Zeus, was immortal but Castor was mortal. When Castor died, Pollux asked to let him share his own immortality with his twin to keep them together. They were transformed into the Gemini constellation and the two spend alternate days on Olympus (as gods) and in Hades (as deceased mortals). The pair were regarded as the patrons of sailors, to whom they appeared as St. Elmo's fire.
I am a Gemini and want to add them to my Ancient Coins collections.... The issues I want for the Dioscuri are Roman and Greek but extend to other ancient empires as well. Here is an Example of what I have:
L Memmius Denarius. 109-108 BC
Wildwinds: L Memmius Denarius. 109-108 BC. Silver Coin w/ CASTOR & POLLUX aka The Dioscuri - 108 BC
Obverse: Large portrait of a young man facing right, wreathed with oak, with "*" below chin...
Reverse: The nude Dioscuri standing facing between their horses, each holding a spear, a star above each head. L. MEMMI in exergue Reference :SEAR # 235