Remove pre-filled invitees from list within calendar

I’m unable to remove individuals from the pre-filled “invitee” list when making a calendar entry.

I was recently sent a calendar invite from someone and they included other people in the invite. Now those people are showing in my pre-filled list of invitees. This list appears when I make a new calendar entry and click on “invitees”. I don’t have these individuals in my contacts so I know they're pulling in from the previous calendar invites. There is no way to manually slide left/right on these names to delete them either.

I’ve already tried the following, and waited several days afterwards, with no luck:

-had the original person remove me as an invitee from the calendar entries that caused the issue

-had the original person delete the calendar entries that caused the issues

-deleted the calendar entries myself that caused the issues

Any help would be much appreciated. I only invite my husband to calendar entries and I fear that I may mistakingly invite one of these additional people by accidentally clicking on their name on the “invitee” list.

thank you!