In the near vicinity of the Trinity Church rises the monumental Rosello fountain (also known as Garusele and Garusello). Over the centuries, the fountain has been the under the care and maintenance of the city of Sassari. Already cited in a document dated 1295, but whose shape was not known, the fountain took on its actual shape between 1605 and 1606 thanks to work by Genoese workers. It is in a late-Renaissance style; the gracious, rectangular-shaped fountain is divided into two overlapping parallelepipeds realized in green and white marble. On the edge of the fountain, we find a statue called “Giogli" while on the corners you can note the statues of the seasons. Water flows constantly from the mouths of twelve lions. Following damage inflicted during anti-feudal risings in 1795, during which three of the four original statues were damaged, in 1828 in a Ligurian shop, the statues that are visible today were realized. After being located in the public gardens and a long restoration, the original surviving statue representing summer was transferred inside the Palazzo Ducale (the Doge's Palace).