Like C.C., V.V. is absolutely immortal, unable to die, age, get sick, or be permanently wounded, is absolutely self-sustained, and his mind and soul are as immortal as his biological body.

Who dies at the end of Code Geass?

To give the creators credit, the three recap films that preceded Lelouch of the Re;surrection had been building up to it. Fans are finally given their answer and learn that Lelouch did die with no intent to survive--but they do so only for C.C. to destroy it through her plan to resurrect him.

Why did VV kill Marianne?

In a flashback, it is revealed that V.V. was the one who assassinated Marianne, having done so out of jealousy. He lies about this to Charles, breaking his promise of mutual honesty between him and Charles.