Fresh off the synod on the family, at which conservative Catholic bishops rallied to assert ideological domination over the final report, the Congregation for the Doctrine of the Faith (formerly known as the Inquisition) has announced that it will be hosting a colloquium this month on the “Complementarity of Man and Woman in Marriage.” Trekking to Vatican City for the event will be some American anti-equality advocates: Rick Warren, the Southern Baptists’ Russell Moore, right-wing Archbishop of Philadelphia Charles Chaput, and Henry B. Eyring, First Counselor in the Presidency of the Church of Jesus Christ of Latter-day Saints.

The November 17-19 event will be co-hosted by the Pontifical Council for the Family, the Pontifical Council for Interreligious Dialogue, and the Pontifical Council for Promoting Christian Unity. The announcement of the colloquium says it will feature representatives from 14 religious traditions and 23 countries. Among them is Nicholas Okoh, the Anglican Archbishop of Nigeria, who has called homosexuality a manifestation of the devil and praised Nigerian President Goodluck Jonathan’s “courage” in signing a harsh anti-gay law last December. Okoh said in January that people who oppose the law will face “disaster.”

The event will also premiere six short films about marriage; a trailer for the series is online now.

UPDATE: Russell Moore has explained why he’s going to the Vatican: