[dragonwriter]

> Pedantic Catholics wouldn't recognize the religious validity of a marriage involving a divorced person blessed by a different church, but they don't challenge the legal validity.

A pedantic Catholic would note that the Church actually presumes the religious validity of non-Catholic marriages between people who are non-Catholics, even though such marriages would be invalid for a Catholic, and while the issue of prior divorce makes this a more difficult question, it only does so because it then requires a definitive resolution of the presumed validity of the former marriage.

This is not-infrequent source of complications if one of the partners, after divorce in the second marriage, seeks to marry a Catholic in the Catholic Church, so its a fairly well-documented issue, if perhaps obscure to people who aren't pedantic Catholics.