Complex sentence: Kristiansand katedralskole (the Cathedral School of Kristiansand), known in Latin as Schola Christiansandensis, is a high school in Vest-Agder, Norway, as well as the oldest high school on the southern coast of Norway, having been founded in 1686.
Split into simpler sentences: Kristiansand katedralskole (the Cathedral School of Kristiansand), known in Latin as Schola Christiansandensis, is a high school in Kristiansand, Vest-Agder, Norway. It is the oldest high school on the southern coast of Norway, having been founded in 1686.