So, my invitations are sent out, all is fine and dandy, but my brother just sent his out for his wedding and did an oopsie.
One of my dad's cousin's wife died recently (about 2 months ago) and he told myself and my brother to make sure she's taken off of the invitations. I did and added "and Guest" whereas I guess my brother did not nor was he using my most updated guest list which would of had it corrected and sent the invitation as "Mr. and Mrs. John Doe" and it caused some rift in the family. I guess his daughter (who is in her mid thirties and not invited to the wedding) saw it and got upset and told my dad's other cousin (her aunt) and then she told my dad's other cousin and that cousin texted my brother and said something about how it upsetted them. And on top of that, my dad's cousin (the daughter's aunt) called my dad and complained about it and also about how we should sit him with her at our weddings because she's afraid we might sit him elsewhere not recognizing his name...
What would you do if you were in my brother's shoes? In my mind, really, there is nothing you can do except not put Mr. and Mrs. on place card or thank you card if given a gift. Or you could send a card saying you're sorry for his lost, but they're upset just because they saw "Mrs." on an invitation that was most likely written before she died, at least the guest list was. So that way, would make them more upset.
ETA: Originally my dad thought this was because of the daughter not being invited to the weddings, but he wasn't even invited to hers so he thought it couldn't be, then later found out from her aunt it was due to the death.