It is beyond doubt that there was a connection between the deaths of Crispus and Fausta. Such agreement among different sources connecting two deaths is extremely rare in itself. A number of modern historians have suggested that Crispus and Fausta really did have an affair. When Constantine found out, his reaction was to have both of them killed. A possible cause of delay in the death of Fausta is pregnancy. Since the years of birth for the two known daughters of Constantine and Fausta remain unknown, one of their births could have delayed their mother's execution.