Room 142, which is now used for teaching and lectures, served as a burial chapel in the 15th century.
The tomb shown here (top centre) was found to contain the remains of one adult and two children.
On its arch, crowned with a coat of arms incorporating a castle, the symbol of Castile (main image, left), there is a charcoal drawing of a medieval knight.
Another tomb, which is now hidden as it is located on the floor and covered by a carpet, holds the remains of a Spanish prelate.
Send suggestions for this series on the treasures, oddities and curiosities owned by universities across the world to matthew.reisz@tsleducation.com.