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| | St. Adalbert - Ökumenisches Heiligenlexikon |
 | | His mission was the result of a request of the princess Olga who, having appealed in vain to the court of Constantinople for someone to evangelize her people, besought the German Emperor Otho, who sent Adalbert and a number of priests to begin the work. |
 | | Magdeburg became one of the great bishoprics of the country, the chief one in the North, and ranking with Cologne, Mainz, and Trier. |
 | | Adalbert was made Metropolitan of the Slavs, and established among them the sees of Naumburg, Meissen, Merseburg, Brandenburg, Havelberg, and Posen. |
| www.heiligenlexikon.de /CatholicEncyclopedia/Adalbert_von_Magdeburg.html (225 words) |
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