Traditional accounts credit Saint Nino, a Cappadocian woman who preached Christianity in Iberia (corresponding to modern southern and eastern Georgia, northeastern Turkey) early in the 4th century, with this unusual shape of cross.
[1] The legend has it that she received the grapevine cross from the Virgin Mary (or, alternatively, she created it herself on the way to Mtskheta) and secured it by entwining with her own hair.
During the Persian invasions it was taken to Armenia and stayed there until David IV of Georgia recovered the Armenian city of Ani from the Muslims in 1124, and brought the cross to Mtskheta.
King Vakhtang III of Georgia (1303–1307) enshrined the cross in a special envelope, decorated with the scenes from St. Nino's life.
The Georgian king Erekle II tried to recover the relic for Georgia from Bakar's family, to no avail.