Complex sentence: The collection also includes a Romanesque shrine from about 1140 and a Renaissance trunk by the Italian artist Andrea Mantegna, part of the dowry of Paola Gonzaga, the deceased wife of Count Leonhard of Gorizia, who gave it to the monastery in 1495.
Split into simpler sentences: The collection also includes a Romanesque shrine from about 1140 and a Renaissance trunk made by the Italian artist Andrea Mantegna. The chest once was part of the dowry of Paola Gonzaga, the deceased wife of Count Leonhard of Gorizia, who gave it to the monastery in 1495.