Updated

The Associated Press has learned that a former top official at the Legion of Christ, who left the priesthood after admitting he fathered a son, is marrying the child's mother this weekend. The bride is the daughter of the former U.S. ambassador to the Holy See, one of Pope Francis' top advisers.

Thomas Williams, a moral theologian and U.S. television personality, is marrying Elizabeth Lev, a Rome-based art historian and columnist for a religious news agency that Williams published.

Lev's mother is Mary Ann Glendon, one of the highest-ranking women at the Vatican.

The wedding raises uncomfortable questions about who in the church knew about the child, and Glendon's ties to Williams influenced her defense of the Legion despite credible reports that its founder was a pedophile.