How to recover deleted personal photos from an old Apple Account?

If the Apple Account still exists, but it is an "old Apple Account" that you have not used for a while, any deleted photos in it are probably already gone.

When you delete a photo from iCloud, or from the main Photos library on a device using iCloud Photos, you will normally have a 30-day grace period to go into the Recently Deleted folder, and recover photos. After that, the photos become permanently deleted, and you can't get them back.

If this is an old Apple Account that still exists, but has been inactive for more than 30 days, every photo that is In Recently Deleted will have been permanently deleted.

If, on the other hand, you are trying to say that you deleted the Apple Account itself, see the previous answers – which indicate that your photos would also be permanently gone.

Carefully and thoroughly read this support article How to delete your Apple Account - Apple Support about what happens when you delete an Apple Account.

You could try to get the account working again, as outlined in the article.

"What happens if I change my mind after I have requested that my account be deleted?

While your request is being processed, you can contact Apple Support [call them at a telephone number for your country --> Contact Apple Support - Apple Support ] with the unique alphanumeric access code you received, and we’ll help you cancel your request. After your account is deleted, Apple can't cancel the request, reopen your account, or restore your data."