There is no such person as Eros Christian.
Perhaps you mean what is Eros' Christian name? Eros wasn't a Christian, he was a primordial Greek God. His Roman equivalent was Cupid (also not Christian). Christianity began as a Jewish sect around the mid-1st century thus Eros pre-dates Christianity by more than 700 years (according to Hesiod, one of the most ancient of all Greek sources). Cupid probably evolved later but there are references as early as 340-320 BC.
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The Greek name for the God Eros is Eros.. The Latin name for Eros is Cupid
Cupid was the Roman name. His Greek equivalent was Eros.
Eros Galbiati's birth name is Eros Manolo Galbiati.
Eros's Roman name is Cupid.
Eros: Ερως
Eros Ramazzotti's birth name is Ramazzotti Molina, Eros Luciano Walter.
Stefano Eros Macchi's birth name is Stefano Eros Macchi.
Eros's mother was Aphrodite. Eros's father was Zeus.
William Jason Reso
Cupid is Aphrodite's son. His real name is Eros but Americans call him cupid. Aphrodite is the female god of love so Eros is the male god of love.
No Cupid is Eros' Roman name.