Analysis of information sources in references of the Wikipedia article "Constantine the Great" in English language version.
"Constantine's mother Helena, was a Greek and a Christian".
Constantine's mother, Helena, was a Greek form Asia Minor and also a devoted Christian who seemed to have influenced his choices.
If a Jew has bought and circumcised a Christian slave or one belonging to any other religious community, he may under no circumstances keep the circumcised person in slavery; rather, whoever suffers such a thing shall obtain the privilege of freedom.
Constantine forbade the circumcision of Christian slaves, and declared any slave circumcised despite this prohibition a free man