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Title: Bertha-Irene of Sulzbach, first wife of Manuel I Comnenus
Contributor(s): Garland, Lynda (author); Stone, A (author)
Publication Date: 2005
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Abstract: From the time of the Norman conquest in 1071 of Bari, the last Byzantine possession in Italy, and Robert Guiscard's invasions of Greece in the 1080s, the Normans had been a constant threat to the Byzantine empire. As a result, the foreign policy of both John II (1118-1143) and Manuel I Comnenus (1143-1180) was motivated by the desire to ally themselves with Germany in order to neutralise the threat of the Normans, an alliance which was pursued until the Byzantine defeat at Brindisi in 1156, when it was terminated by Frederick I Barbarossa for having outlived its usefulness. In the circumstances, John II (1118-1143) considered that a marriage alliance with Germany would be prudent, and he fixed on his youngest son Manuel as the most suitable candidate for such an alliance, perhaps because of his Latin sympathies: earlier John had considered marrying Manuel to Constance, the only daughter of the prince of Antioch. She was, however, quickly married to Raymond of Poitiers in 1136 to avoid Antioch coming under Byzantine control.
Publication Type: Entry In Reference Work
Source of Publication: DIR: De Imperatoribus Romanis ("On the Rulers of Rome") - An Online Encyclopedia of Roman Rulers and their Families
Publisher: Academic Computer Services of Salve Regina University
Field of Research (FOR): 220207 History and Philosophy of the Humanities
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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