Constantine is 666 and he invented Jesus Christ, as prophesied in Revelation 13:13-18. He did this as part of the conspiracy to use religion as a weapon for control and increased power. When he came to Rome he had already seen the demise of Maxentius, the Son of Emperor Maximian, and he was determined to achieve sole rule. He finally achieved that goal with the death of his eldest son, Crispus, who was executed on his orders for treason. That was one year prior to his establishment of the Catholic organisation at the Council of Nicaea in 325 AD.