Norah
^No it isn't a strange thought Hilltop. There have been numerous examples over the years where estrangement has been caused by a third party.^
I assumed no third party would be involved, ever.
Reason is -- I've been asked if our daughters husbands had estranged because of our lovely daughters - no, our sils were estranged early, University, before our daughters married. I've been asked if we considered meddling in estrangements. Not for a moment. None of our business.
Yes, IL’s can sometimes cause a fracturing of families. I read MN sometimes, and there are many threads about problems with ILs - most commonly the relationship between DIL/MIL.
Sometimes the arguments can appear to be over trivia, sometimes not.
But, every family is unique - the problems can sometimes be with AC’s or EP’s. Or, stepchildren.
But, to pull this back to the original OP, it was about whether those estranged, or who had estranged, would leave anything in their Wills to those people.
And, obviously, opinions differed.🙂