How to restore
How to restore backup from previous ipad
iPad, iOS 10
Question marked as
Settings, [your name], iCloud, iCloud Backup
There will beva list of backups thstvare in your icloud account.
If it is not there under the name of the old ipad then it is not available.
To restore it you need to restore the device to factory settings (erase all content &settings) then set up and restore that backup when asked .