He did not die. He married and had three children. A small piece of Lord Voldemort's soul was in Harry Potter, making him a Horcrux, and when Voldemort hit Harry with the killing curse, supposedly killing him, he killed the Horcrux inside Harry.
No, they did not.
In the Deathly Hallows
No, why shoud he?
He lives
No.
no
No, Dudley survives.
Harry Potter and The Deathly Hallows
Yes.
She didn't.
Yes he did.
No, he had a near-death experience but didn't die.