Book contents
- Frontmatter
- BIOGRAPHICAL NOTE
- PREFACE
- Contents
- LIST OF PLATES
- I A FLOATING REPUBLIC
- II THE EXPULSION OF MOGAHID FROM SARDINIA
- III THE EXPEDITIONS AGAINST PALERMO AND MEHDIA
- IV THE FIRST CRUSADE
- V THE BALEARIC EXPEDITION
- VI WAR WITH GENOA
- VII THE WAR WITH THE NORMANS
- VIII INTO THE VORTEX
- IX PISAN COLONIES
- X FREDERICK BARBAROSSA
- XI EXPULSION OF THE GENOESE FROM CONSTANTINOPLE
- XII BARISONE OF ARBOREA
- XIII RAINALD OF COLOGNE
- XIV GENOA AND LUCCA AGAINST PISA
- XV CHRISTIAN OF MAYENCE
- XVI THE COMMUNES DEPRIVED OF THEIR CONTADI
- XVII PISA AND THE EMPEROR HENRY VI
- XVIII ‘THE GREAT REFUSAL’
- XIX PISA UNDER THE GOVERNMENT OF THE CONSULS
- XX CONSORTERIE GENTILIZIE
- XXI FROM CONSULS TO POTESTA
- BIBLIOGRAPHICAL APPENDIX
- INDEX
- Plate section
XV - CHRISTIAN OF MAYENCE
Published online by Cambridge University Press: 05 July 2011
- Frontmatter
- BIOGRAPHICAL NOTE
- PREFACE
- Contents
- LIST OF PLATES
- I A FLOATING REPUBLIC
- II THE EXPULSION OF MOGAHID FROM SARDINIA
- III THE EXPEDITIONS AGAINST PALERMO AND MEHDIA
- IV THE FIRST CRUSADE
- V THE BALEARIC EXPEDITION
- VI WAR WITH GENOA
- VII THE WAR WITH THE NORMANS
- VIII INTO THE VORTEX
- IX PISAN COLONIES
- X FREDERICK BARBAROSSA
- XI EXPULSION OF THE GENOESE FROM CONSTANTINOPLE
- XII BARISONE OF ARBOREA
- XIII RAINALD OF COLOGNE
- XIV GENOA AND LUCCA AGAINST PISA
- XV CHRISTIAN OF MAYENCE
- XVI THE COMMUNES DEPRIVED OF THEIR CONTADI
- XVII PISA AND THE EMPEROR HENRY VI
- XVIII ‘THE GREAT REFUSAL’
- XIX PISA UNDER THE GOVERNMENT OF THE CONSULS
- XX CONSORTERIE GENTILIZIE
- XXI FROM CONSULS TO POTESTA
- BIBLIOGRAPHICAL APPENDIX
- INDEX
- Plate section
Summary
Although the usual proviso: salva fidelitate imperatoris was duly inserted in the treaty with Florence, it was qualified by the addition of a clause which practically provided for the maintenance of the alliance even in the face of Imperial disapproval: ita tamen vt imperator non possit liberare nos a predictis sacramentis. Neither did that alliance stand alone. Already, in 1169, the Pisans had made peace with William of Sicily, and, in 1168 or 1169, they had sent ambassadors to Constantinople to treat with Manuel Comnenus. The negotiations were long and difficult, lasting, as Marangone tells us, for over three years; and only when they had agreed to annul every pact inconsistent with their loyalty to the Eastern Empire, with whomsoever entered into—coronato vel non coronato—were the Pisans at last permitted to re-occupy the quarter from which they had been expelled some ten years earlier.
This change in Pisan policy was eagerly seized upon by her enemies as affording an opportunity to discredit her with Barbarossa; and, in the late autumn or early winter of 1171, “rogatu et suasione et precibus Lucensium et Ianuensium,” Christian of Mayence was appointed Imperial Legate of all Italy, and unexpectedly appeared in Lombardy. He traversed the territories of the revolted Communes with all possible speed, avoiding the more frequented roads, and, after fording the Tanaro near Alessandria, reached Genoa in safety.
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- A History of PisaEleventh and Twelfth Centuries, pp. 195 - 206Publisher: Cambridge University PressPrint publication year: 2010First published in: 1921