<nowiki>Ottokar IV d'Estíria; Ottokar IV de Styrie; Ottokar IV d'Estíria; Ottokar IV.; Ottokar IV.; Отакар IV; Отокар IV; Ottokar IV.; Ottokar al IV-lea de Stiria; オットカール4世 (シュタイアーマルク公); Ottokar IV.; Otakar IV. Štýrský; Ottokar IV.; Otokar IV.; Ottokar IV.; Ottokar IV van Stiermarken; 奧托卡四世; Ottocaro IV di Stiria; 奥托卡四世; Ottokar IV.; Ottokar IV, Duke of Styria; ოტოკარ IV; Ότοκαρ Δ΄ της Στυρίας; 奥托卡四世; fiul markgrafului Ottokar al III-lea de Stiria și ultimul membru al dinastiei Otakarilor; van 1164 tot 1192 markgraaf en vanaf 1180 hertog van Stiermarken; marcgravi d'Estíria el 1164 i després duc, a partir de 1180 fins a la seva mort; feudatariu austriacu (1163–1192); ab 1164 Markgraf, ab 1180 Herzog der Steiermark; маркграф и херцог Щирия след 1180 г; Margrave of Styria from 1164 and Duke from 1180, when Styria, previously a margraviate subordinated to the stem duchy of Bavaria, was raised to the status of an independent duchy; сыном Отакара III, маркграфа Штирии, и Кунигунды Фобургской; štýrský markrabě a vévoda; Austrian siyaasa nira ŋun nyɛ doo; Ottokar al IV-lea; Ottokar IV; Otakar; Ottokar IV; Otakar IV; Otakar; Ottokar IV; Otakar IV; Оттокар IV; Otokar IV. Štajerski; Otakar; Ottokar IV; Otakar IV; Otakar; Ottokar IV; Otakar IV; Ottokar IV; Otokar IV; Otakar; Ottokar IV; Otakar IV; 施蒂里亞公爵奧托卡四世; Otakar; Ottokar IV; Otakar IV</nowiki>
Ottokar IV, Duke of Styria
Margrave of Styria from 1164 and Duke from 1180, when Styria, previously a margraviate subordinated to the stem duchy of Bavaria, was raised to the status of an independent duchy