Why i think Nero could be Dante's relation

[Devil-Bringer]

Can you remember when dante gave Nero Yamato at the end of DMC4, recall to the part of the game where he wants it back and says it has to stay in the family Dante must know he is a relative, just a theory

 

[Esura]

Although I believe Nero has relation to Dante too, the reason you gave is kinda odd. When Dante says it has to stay in the family so he want it back, he is reffering to Sparda (the original owner and himself).

I believe you mixed up sum scenes lol.