And speaking of Putin's passport: Russian international passports usually have the patronymic spelled only in the Cyrillic name, the international name is just First Last. So most likely Putin's passport says "Vladimir Putin" and "Владимир Владимирович Путин". I think it's the best decision - nothing good is going to come out from forcing patronymics on people who cannot even read Russian and exposing your citizens to all potential fuckups caused by name confusion.