Constantine the Great (280-337 AD) defeated the Emperor Maxentius at this battle in 312. Eusebius records in his Life of Constantine that on the eve of the battle in a dream, Constantine saw a cross in the sky and heard a voice crying 'in hoc signio vinces' (in this sign, conquer). This tapestry follows an alternative version that records that Constantine saw the vision on the battlefield. The Emperor granted an edict of toleration to the Christians and was baptised later. He adopted the Chi-Rho monogram on his coins and substituted it for the Roman Eagle on the standards of his legions.