Birthday showing in calendar but not entered on a contact
Hi:
A birthday event shows up in my calendar and I can't get rid of it.
The birthday isn't entered on the contacts card - I've looked on all of my devices but the date isn't recorded anywhere. This is a legitimate contact name and birth date that I must have entered at some point and later deleted.
I've tried deleting the contact and the birthday still shows in calendar.
When tap on the event in calendar, I can't delete it, but I think is shows that it is coming from contacts: On the event, beside the word Calendar is a green circle and the word Contacts.
Although my iPhone and iPad are synced, the event is only in my iPhone calendar.
Any ideas on how I can remove the event?
iPhone XS, iOS 15