Hi, Beth! We meet again. :-)
I restored the Current Last Name on
https://www.wikitree.com/wiki/Huldricha-1 ... it appears that Huldricha is his Last Name at Birth, and there's no indication that his Current Last name should be Row. The Ancestry Tree that his profile was based on doesn't appear to be available anymore. So, I don't think we can be sure of anything on his profile, unfortunately.
I see that Huldricha Row's husband's name was Karl (
https://www.wikitree.com/wiki/Von_Hauser-4), but he was born in 1655, so he doesn't appear to be match for the other "Karl" profile.
I would just ignore Huldricha-1 for now. It's likely that the last name is misspelled and could be something like "Huldrich" or "Heldrich."
Good idea to put this in G2G! :-)