Probably a few grains of truth buried in these lines
https://www.splcenter.org/hatewatch/2011/11/23/vatican-assassins-one-stop-website-conspiratologists
She is a mistress-turned-wife
https://slate.com/human-interest/2011/03/callista-gingrich-judith-nathan-and-other-political-mistresses-who-became-political-wives.html