Complex sentence: Renato Guttuso's father, Gioacchino Guttuso, was a land surveyor and amateur watercolourist and there are many portraits of him in the collection donated to the mayor of Bagheria.
Split into simpler sentences: Renato Guttuso's father, Gioacchino Guttuso, was a land surveyor and amateur watercolourist. There are a number of portraits of Gioacchino in the collection donated to the mayor of Bagheria.