Is Perpetual Virginity of Mary Dogma or Doctrine?

Someone told me that the life-long virginity was tradition and not dogma–that a Catholic need not accept it. I’m looking for a definitive answer.

The following links should help you understand the Church’s position on whether Jesus had brothers. If you have any further questions, please contact Catholic Answers directly.

Recommended Reading:

[LIST]
*] Doesn’t Scripture imply that Mary had children other than Jesus?
*] Did Jesus have brothers?
*] Perpetual Virginity: Why is this important?
*] Mary: Ever Virgin
[/LIST]

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