[{WikipediaArticle oldid='223704112'}]

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| Leopold IV, Duke of Austria| Die Siegel der österreichischen Regenten| Karl von Sava| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Leopold IV, Duke of Austria.jpg
| "Leopoldus Tertius". In this series of portraits the child dukes Frederick II and Leopold II are not counted. So, Leopold III becomes Leopold II, and Leopold IV Leopold III . And so the information corresponding this Leopold in the URL is wrong.| http://www.kulturpool.at/plugins/kulturpool/showitem.action?itemId=17179958250&kupoContext=default| Antoni Boys| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Leopold IV.jpg
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