Seals in Barisic, Pečati iz Sirmijuma

• Konstantinos Oumbertos, protonobelissimos and doux

  Μιχαήλ. / Κύριε βοήθει τῷ σῷ δούλῳ Κωνσταντίνῳ πρωτονωβελισσίμῳ καὶ δουκὶ τῷ Οὐμπέρτῳ

  Michael. / Lord aid your servant Konstantinos Oumbertos, protonobelissimos and doux

  Preslav, Archaeology Museum 26851

• Konstantinos Oumbertos, protonobelissimos and doux

  Μιχαήλ. / Κύριε βοήθει τῷ σῷ δούλῳ Κωνσταντίνῳ πρωτονωβελισσίμῳ καὶ δουκὶ τῷ Οὐμπέρτῳ

  Michael. / Lord aid your servant Konstantinos Oumbertos, protonobelissimos and doux

  Serbia, unknown collection