- Spanish late scholasticism and canon law of the early modern period
- European expansion and colonial law
- Learned law in the late middle ages and early modern period (especially questions regarding the law on limitation periods)
- Legal and constitutional history of the early modern period
After studying law in Würzburg (First State Examination 1994, Second State Examination 1996) Christiane Birr was awarded her doctorate in the year 2000 for her thesis about penal jurisdiction and power organization in the episcopal duchy of Würzburg during the 15th and 16th centuries.
Subsequently, she worked as a research assistant at the Institute for Legal History of Würzburg University (2000-2003). Her postdoctoral research project “Rights in the Stream of Time –Prescription and Usucapion in European Legal History” was awarded the “Bayerischer Habilitationsförderpreis” (Bavarian scholarship for the support of outstanding young researchers) in 2002. From 2003 till 2005 she was financially supported by this scholarship. In 2006, the Law Faculty of the University of Würzburg granted her permission to teach German and European legal history, canon law and civil law (“Habilitation”).
Between 2007 and 2009 she was auxiliary professor at the Leopold-Wenger Institute for Legal History at the Ludwig-Maximilian University in Munich. Following this, she became lead researcher at theMax Planck Institute for Legal History and Legal Theory (formerly Max Planck Institute for European Legal History) in Frankfurt.
Since 2013 Christiane Birr coordinates the Academy of Sciences and Literature in Mainz's project “The School of Salamanca. A Digital Collection of Sources and a Dictionary of Its Juridical-Political Language”. In 2014, the Legal Department of Frankfurt’s Goethe University affiliated Christiane Birr as lecturer (Privatdozentin).
Yearbook 2014 Legislation in Early Modern Hispanic America: The Third Mexican Provincial Council (1585)
Yearbook 2011 The School of Salamanca and the New World