Complex sentence: In addition, he gifted a large number of buildings on Palace Green, between the Castle and the Cathedral, which are currently in use by various departments of the University (principally law, music and a small portion of the University Library).
Split into simpler sentences: In addition, he gifted a large number of buildings on Palace Green, between the Castle and the Cathedral. These are currently in use by various departments of the University (principally law, music and a small portion of the University Library).