Among the paintings is a portrait of Archbishop James Usher, who donated the Book of Kells (see below) to the University Library.
The painting of Archbishop James Usher was created after he made a donation to the library. 
mnli hypothesis: The painting of Archbishop James Usher was created after he made a donation to the library.  premise: Among the paintings is a portrait of Archbishop James Usher, who donated the Book of Kells (see below) to the University Library.