Bible Encyclopedias
Sergius IV
1911 Encyclopedia Britannica
IV., pope from 1009 to 1012, originally bore the name of Bucca porca (Os porci). He was a mere tool in the hands of the feudal nobility of the city; he was succeeded by Benedict VIII.
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Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Sergius IV'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/s/sergius-iv.html. 1910.