I have had an iCloud account associated with a Gmail ID firstname.lastname@example.org. I then switched to another ID email@example.com, so I removed firstname.lastname@example.org from my iCloud account and entered email@example.com. This was an year or so back.
A few days back, I found an entry in the Keychain for firstname.lastname@example.org, so I deleted it. After that, I'm prompted one every reboot to enter the password for email@example.com:
I cancel it, but it comes up after every reboot. I tried entering my iCloud password, but it doesn't work.
How do I get this prompt to go away and never come back?