Cyricus
Some evidence exists for an otherwise unknown child-martyr named Cyricus at Antioch. It is believed that the legends about Saints Quiricus and Julietta refer to him. There are places named after Cyricus in Europe and the Middle East, but without the name Julietta attached. Cyricus is the Saint-Cyr found in many French toponyms. The cult of these saints was strong in France after Saint Amator, Bishop of Auxerre, brought relics back from Antioch in the 4th century. It is said that Constantine I discovered their relics originally and built near Constantinople a monastery, and not far off from Jerusalem was built a church. In the 6th century the Acts of Cyricus and Julitta were rejected in a list of apocryphal documents by the pseudo-Gelasius, called as such since the list was erroneously attributed to Pope Saint Gelasius I.
Feast day June 16
Read more about this topic: Quiricus And Julietta