You must be an Arminian. If you were a Calvinist, you couldn't be so sure that God in His sovereignty didn't elect to save her on her deathbed. Or if you're RC, that she didn't have some other sort of last minute baptism of desire that saved her.
Face it, none of us knows where she is because we don't know what God saw in her at the end.
True, being Calvinist I should have been more careful.
However, those last-minute conversions are rare.
Let's hope God reached her.