Subject: Moral philosophy
Author of work: F. Petrarchus (Francesco Petrarca)
Title: De remediis utriusque fortunae
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Natural History
Title: Natural history
Subject: Sermons
Title: Index to a collection of 90 or more homilies
Subject: Philosophy
Author of work: Adam de Bockfield
Title: Notule magistri Ade de bocfeld super librum phisicorum'
Subject: Theology
Author of work: Gregorius I
Title: Moralia