Monumental library located on the first floor of east part of the bishop residence. There are about five thousand books dating back from the 15th to the 20th century. The biggest part of books is from the 18th and 19th century. Value is certainly 42 editions of the 16th century, about 180 publications from the 17th century, seventy manuscripts and particularly rich collection of dictionaries. Library keeps works with themes from the church and general history, theology, dogma, law, economy, missals and rituals of the eastern and western rites and linguistic treasure. One of the oldest and most valuable books from the collection is the Missalum Zagrebiensis from 1506, printed in Venice.