[Intar]

Uh, no, he was Jewish and was educated in traditional Rabbinic school as a child, then went to college to study law. He was never a Christian.

[Dr. Sivana]

Uh, no, he was Jewish and was educated in traditional Rabbinic school as a child, then went to college to study law. He was never a Christian.

My source states that "Though he [Karl Marx] came from a long line of Jewish Rabbis, he was baptised into the Protestant religion as his father, Hirschel -- a lawyer, had converted to Protestantism shortly before Karl's birth."