Last time I had a baby DP and I told family members our name choices. My MIL had a bad relationship with most of her family so a lot of their names, middle names were off the table. (This includes deceased people we never met, so a lot of names). The issue with this is the names that were off the table were fairly common boy names like "William" or "Arthur".
My DP will only let us choose very traditional English names and the names I like are the ones that might upset other people due to association. My own mother hates other names as well, because of extended family members that I have never met who had those names. I'm not as worried about offending my mum though because she doesn't take things as personal as my MIL does. I'm a bit worried my MIL could take us going against her dislikes as very offensive.
Should I risk offending my MIL and choosing a name I like? Or AIBU to name the baby whatever I want?