قائمة المصادر الأجنبية
- Annals of Fulda :
The Annals of Fulda “ Ninth Century Histories, trans. By Timothy Reuter, vol. 2, Manchester University Press, Manchester,1992.
- Anastasius Bibliothecarius:
Epistolae et privilegia Stephanus Papa, in Anastasius Bibliothecarius , Patrologiae latina , Jacques-Paul Migne , Tomus CXXIX (129),1853.
- Anonymous:
Chronicon Salernitanum, A critical edition with Studies on Literary and Historical Sources and on Language , a cura di U. Westerbergh, Stockholm, 1956.
- Arnulf Of Milan:
The Book Of Recent Deeds, Trans. by W.L. North, from the edition Of Claudia Zey (MGH Scriptors Rerum Germanicarum 67),Hannover, 1994.
- Attonis Vercellensis Episcopi:
Opera Omnia Accedunt Leonis VIII Antipapa Epistolae et Constitutiones, in Patrologiae latina, Jacques-Paul Migne, Tomus CXXXIV (134), 1853.
- Auxilius und Vulgarius:
Auxilii in Defensionem Sacrae Ordinationis Papae Formosi, in Auxilius und Vulgarius Quellen und Forschungen zur Geschichte des Papstthums im Anfange des zehnten Jahrhunderts, von Ernst Dümmler, Leipzig, 1866.
- Einhard :
The Life of Charlemagne , Tran. By Samuel Epes Turner, Harper brother, New York, 1880.
- Flodoard, of Reims:
Les Annales de Flodoard, une Introduction et des Notes par Lauer p., A. Picard et Fils editeurs, Paris , 1905.
- Hermannus Contractus:
Hermanni Contracti Chronicon "Codex Augiensis" ad anno 904, in Patrologiae latina, Jacques-Paul Migne, Tomus CXXXXIII (143), 1853.
- Iohannes VIII papa:
Queritur nullam sibi contra Saracenorum excursiones opem ferri; rogut ut ub imperatore celeriter posluletr auxilium: legatum suum commendat ; petit det operam ut Angelberga ab exsilio revoceiur et Romam nuittalur ( anno 882 ), in Opuscula et epistoae quae spectant ad causam Hincmari Laudunensis Joannes VIII Pontifex Romanus, in Patrologiae latina, tomus 126, Excudebatur et venit apud J. P. Migne, 1852.
- Joannes Papa XII Anno Domini DCCCCLXIII (963), in Patrologiae latina, Jacques-Paul Migne, Tomus CXXXIII (133), 1853.
- Liutprand of Cremona:
Works of Liutprand of Cremona, trans. & introduction by F. A. Wright, E. P. Dutton &CO., New York, 1930.
- Platina, Bartolomeo:
The Lives of The Popes "from The Tim of our Saviour Jesus Christ to The Accession of Gregory VII", trans. & edited by Benham B. D,Griffith Farran & CO., London.
- Thietmar of Merseburg:
The Chronicon of Thietmar of Merseburg "Ottonian Germany", trans. & annotated by David A. Warner , Manchester University Press, Manchester , New York, 2001.
- William Cave:
Scriptorum Ecclesiasticorum historia literaria a Christo nato usque ad sæculum XIV, Musevm Britan, Coloniae Allobrogum Gabrielem de Abrielem de Tournes & Filios , M.D CC. XX. (1720).
قائمة المراجع الأجنبية والعربية
- Brenda Ralph Lewis:
Dark History of the Pope, Amber Books Ltd,London, 2012.
- Conrad Leyser:
Episcopal Office in the Italy of Liudprand of Cremona "c.890-c.970", in The English Historical Review, Vol. 125, No. 515 (August), Oxford University Press, 2010.
- Christopher Kleinhenz:
Medieval Italy: An Encyclopedia , vol. 1 , New York Published by Routledge, 2004.
- Ferdinand Gregorovius:
History of the City of Rome in the Middle Ages, vol. 3, trans. from German edition by Annie Hamilton, G. Bell & sons, London, 1895.
- Issac pandinjarekutt:
Christianity Through The Centuries, St. Paul Press Training School, 2005.
- Jerry L. Walls:
The Problem of Bad Popes" The Argument from Conspicuous Corruption", in Perichoresis, vol. 18, Houston Baptist University, 2020.
- John C. Dwyer:
Church history, Paulist Press, New York, 1998.
- Jo Ann Mcnamara and Suzanne Wemple:
The Power of Women through the Family in Medieval Europe 500-1100 , vol. 1, Feminist Studies , Women's History, (Winter – Spring), Feminist Inc. , 1973.
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- وفاء مختار غزالى :
تاريخ المسلمين فى فراکسنتيوم (277 – 365هـ / 890 – 975م) ، فى مجلة المؤرخ العربى ، العدد 19 ، أکتوبر 2011م .