Subject: Moral philosophy
Author of work: F. Petrarchus (Francesco Petrarca)
Title: De remediis utriusque fortunae
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Encyclopaedia
Author of work: Rabanus Maurus
Title: De natura rerum
Subject: Philosophy
Author of work: Bartholomaeus Anglicus
Title: De proprietatibus rerum