During the reign of Prince-Bishop Petar II Petrović-Njegoš, he was granting a special Montenegrin Bill of Passage. From then on, next to every user of the bill and subsequent passports, "Montenegrin" was added, relating to the country of his or her birth. It also introduced the notification from which clan is the individual. Later, Njegos formally instituted as the official name "Montenegrin Passport". A component part of it was the Seal of the Cetinje Metropolitanate's Righteous Soviet, a bicephalic white eagle with spread-out wings, an Eastern Orthodox cross between his heads and a passing lion beneath it, altogether on red background.