Juan de Avila's Audifilia, 1859r.

Juan de Avila's Audifilia, 1859r. - Franz Joseph Schermer

Audi filia et and De sinu patris were two letters written by either Pope Urban IV (1165–1264) or Pope Clement IV (1200–1268). They are undated, but were probably written during the 1260s,[1] separately chastising one noblewoman and one nobleman for inappropriate activities. According to historians such as Hans E. Mayer and Peter W. Edbury, the letters were written in 1261 or 1262, and were intended for the Cypriote queen Plaisance of Antioch (1235–1261) and her lover John of Jaffa (1215–1266), who left his wife Marie of Armenia to pursue the relationship.[2] Other historians such as David Nicolle, Steven Runciman and Christopher Tyerman[3] believe that the date is more likely 1268, that the noblewoman was another Cypriot queen, Isabella of Ibelin (1252–1282), and it was her affair with Julian of Sidon (born c. 1230, d. 1275) that prompted the papal letters.[4]