This has happened to my wife numerous times.
See, my mother-in-law (little old Italian lady) has been to many weddings of aunts and uncles and cousins (of which there are dozens) over the decades – and for every occasion, she has given $200 to $500 as a wedding gift.
Now fast-forward to the past ten years or so, and all the children and grandchildren of these people are getting married – and their Nonna says, “You gotta invite the daughter (my wife). Her mama came to our wedding many years ago and gave-a sucha nice-a gift or it’s a sin. We’re piezans Jesu Crist-a-Mia.”
Next thing ya know, we’re getting cordially invited to the wedding of Rocco and Gina Scaramuzzatini or some such who my wife thinks is some cousin on her mother’s side. People we’ve never met.