The Crucifixion of Constantine

Helen, Constantine's mother, comes back into the scene after Constantius was killed in Britain. Eusebius of Caesarea says that it was Constantine himself who brought his mother to the face. Helen is really kind of on the scene with Constantine from the beginning of his political career. And one of the things when Constantine then becomes the sole emperor or tries to make this final assertion of his power, there's a famous battle in Rome.