Thanks for that info. Sort of surprising. There was a child born of the first marriage, and it was consecrated in a non RCC church, so I thought it had pretty solid standing in the RCC’s eyes.
(Don't confuse this with a civil annulment, where having children definitely matters. A civil annulment is really nullifying a marriage. A church "annulment" is a conclusion that no valid, sacramental marriage ever existed.)
I thought it had pretty solid standing in the RCC's eyes.
The presumption in canon law is always in favor of the marriage, so, since your brother never successfully pursued the decree of nullity, the Church's position on his first marriage is that it's still rock solid.