CONSTANT J. MEWS is Emeritus Professor and formerly Director of the Centre for Religious Studies, Monash University (Australia). He specializes in the religious and intellectual history of Europe in the twelfth and thirteenth centuries, on which he has published widely, but is also completing Aidan Breen’s edition of DDAS for the Corpus Christianorum. KATHLEEN B. NEAL is Senior Lecturer in History and Director of the Centre for Medieval and Renaissance Studies at Monash University (Australia). She specializes in later-medieval political culture and communication. Her monograph The Letters of Edward I: Political Communication in the Thirteenth Century was published by Boydell Press in 2021.

"One of the key strengths of Addressing Injustice is its diversity of analysis, which portrays fully the breadth of influence exercised by this singular Hiberno-Latin treatise [...] Addressing Injustice successfully demonstrates many of the ways that De XII abusiuis saeculi shaped the meaning and application of the concept of justice in a variety of contexts across the Middle Ages. Its essays thus contribute substantially to the scholarship concerning this anonymous, seventh-century admonitory treatise from Ireland''. — Máire Johnson, Speculum , vol. 100, no. 3, 2025

• 1. The De XII abusiuis saeculi: Contexts and Textual Traditions (Constant J. Mews and Stephen J. Joyce) 2. The Irish Background to the De XII abusiuis saeculi (Dáibhí Ó Cróinín) 3. ‘Each in the Calling to Which They Are Called’: Images of Authority in the De XII abusiuis saeculi (Stephen J. Joyce) 4. Transforming Irish Traditions: De XII abusiuis saeculi and Justice in the Frankish World, c. 750–1050 (Jelle Wassenaar) 5. The Unjust King and the Negligent Bishop: Addressing Injustice in Eleventh and Twelfth-Century England and Germany (Ryan Kemp) 6. Reflecting on Abuses in Religious Life: From The Twelve Abuses of the Cloister to The Cloister of the Soul (Constant J. Mews) 7. Preaching the Body Politic: John of Wales and Franciscan Political Thought in the Late Thirteenth Century (Kathleen B. Neal) 8. Justice and its Abuses in the Speculum Justiciariorum (Cary J. Nederman) 9. Addressing Abuses and Injustice in the Court of Philip the Fair: The De informatione principum of Durand of Champagne (Rina Lahav) 10. ‘Perfect Justice Weighs Everything on a Balanced Scale’: Italian Friars on Equity and the Commune, c. 1270–c. 1310 (Charles F. Briggs) 11. Some Late Franciscan Rewritings of The Twelve Abuses(Sylvain Piron) Appendix: On the Twelve Abuses of the Age: A Translation (Aidan Breen† and Constant J. Mews) Bibliography Index of Manuscripts Index

CONSTANT J. MEWS is Emeritus Professor and formerly Director of the Centre for Religious Studies, Monash University (Australia). He specializes in the religious and intellectual history of Europe in the twelfth and thirteenth centuries, on which he has published widely, but is also completing Aidan Breen’s edition of DDAS for the Corpus Christianorum. KATHLEEN B. NEAL is Senior Lecturer in History and Director of the Centre for Medieval and Renaissance Studies at Monash University (Australia). She specializes in later-medieval political culture and communication. Her monograph The Letters of Edward I: Political Communication in the Thirteenth Century was published by Boydell Press in 2021.

"One of the key strengths of Addressing Injustice is its diversity of analysis, which portrays fully the breadth of influence exercised by this singular Hiberno-Latin treatise [...] Addressing Injustice successfully demonstrates many of the ways that De XII abusiuis saeculi shaped the meaning and application of the concept of justice in a variety of contexts across the Middle Ages. Its essays thus contribute substantially to the scholarship concerning this anonymous, seventh-century admonitory treatise from Ireland''. — Máire Johnson, Speculum , vol. 100, no. 3, 2025

• 1. The De XII abusiuis saeculi: Contexts and Textual Traditions (Constant J. Mews and Stephen J. Joyce) 2. The Irish Background to the De XII abusiuis saeculi (Dáibhí Ó Cróinín) 3. ‘Each in the Calling to Which They Are Called’: Images of Authority in the De XII abusiuis saeculi (Stephen J. Joyce) 4. Transforming Irish Traditions: De XII abusiuis saeculi and Justice in the Frankish World, c. 750–1050 (Jelle Wassenaar) 5. The Unjust King and the Negligent Bishop: Addressing Injustice in Eleventh and Twelfth-Century England and Germany (Ryan Kemp) 6. Reflecting on Abuses in Religious Life: From The Twelve Abuses of the Cloister to The Cloister of the Soul (Constant J. Mews) 7. Preaching the Body Politic: John of Wales and Franciscan Political Thought in the Late Thirteenth Century (Kathleen B. Neal) 8. Justice and its Abuses in the Speculum Justiciariorum (Cary J. Nederman) 9. Addressing Abuses and Injustice in the Court of Philip the Fair: The De informatione principum of Durand of Champagne (Rina Lahav) 10. ‘Perfect Justice Weighs Everything on a Balanced Scale’: Italian Friars on Equity and the Commune, c. 1270–c. 1310 (Charles F. Briggs) 11. Some Late Franciscan Rewritings of The Twelve Abuses(Sylvain Piron) Appendix: On the Twelve Abuses of the Age: A Translation (Aidan Breen† and Constant J. Mews) Bibliography Index of Manuscripts Index

CONSTANT J. MEWS is Emeritus Professor and formerly Director of the Centre for Religious Studies, Monash University (Australia). He specializes in the religious and intellectual history of Europe in the twelfth and thirteenth centuries, on which he has published widely, but is also completing Aidan Breen’s edition of DDAS for the Corpus Christianorum. KATHLEEN B. NEAL is Senior Lecturer in History and Director of the Centre for Medieval and Renaissance Studies at Monash University (Australia). She specializes in later-medieval political culture and communication. Her monograph The Letters of Edward I: Political Communication in the Thirteenth Century was published by Boydell Press in 2021.

"One of the key strengths of Addressing Injustice is its diversity of analysis, which portrays fully the breadth of influence exercised by this singular Hiberno-Latin treatise [...] Addressing Injustice successfully demonstrates many of the ways that De XII abusiuis saeculi shaped the meaning and application of the concept of justice in a variety of contexts across the Middle Ages. Its essays thus contribute substantially to the scholarship concerning this anonymous, seventh-century admonitory treatise from Ireland''. — Máire Johnson, Speculum , vol. 100, no. 3, 2025

• 1. The De XII abusiuis saeculi: Contexts and Textual Traditions (Constant J. Mews and Stephen J. Joyce) 2. The Irish Background to the De XII abusiuis saeculi (Dáibhí Ó Cróinín) 3. ‘Each in the Calling to Which They Are Called’: Images of Authority in the De XII abusiuis saeculi (Stephen J. Joyce) 4. Transforming Irish Traditions: De XII abusiuis saeculi and Justice in the Frankish World, c. 750–1050 (Jelle Wassenaar) 5. The Unjust King and the Negligent Bishop: Addressing Injustice in Eleventh and Twelfth-Century England and Germany (Ryan Kemp) 6. Reflecting on Abuses in Religious Life: From The Twelve Abuses of the Cloister to The Cloister of the Soul (Constant J. Mews) 7. Preaching the Body Politic: John of Wales and Franciscan Political Thought in the Late Thirteenth Century (Kathleen B. Neal) 8. Justice and its Abuses in the Speculum Justiciariorum (Cary J. Nederman) 9. Addressing Abuses and Injustice in the Court of Philip the Fair: The De informatione principum of Durand of Champagne (Rina Lahav) 10. ‘Perfect Justice Weighs Everything on a Balanced Scale’: Italian Friars on Equity and the Commune, c. 1270–c. 1310 (Charles F. Briggs) 11. Some Late Franciscan Rewritings of The Twelve Abuses(Sylvain Piron) Appendix: On the Twelve Abuses of the Age: A Translation (Aidan Breen† and Constant J. Mews) Bibliography Index of Manuscripts Index