Complex sentence: Various gods such as Titons and Venus have been shown with a gubernaculum but it is most associated with Fortuna since it, along with the cornucopia, is an item that she is often depicted as holding.
Split into simpler sentences: Various gods such as Tritons and Venus have been shown with a gubernaculum. It is most associated with Fortuna since, along with the cornucopia, it is an item that she is often depicted as holding.