The Natchez are noted for being the only Mississippian culture with complex chiefdom characteristics to have survived long into the period after the European colonization of America began. Others had generally declined a century or two before European encounter. The Natchez are also noted for having had an unusual social system of nobility classes and exogamous marriage practices. It was a strongly matrilineal kinship society, with descent reckoned along female lines. The paramount chief named the Great Sun was always the son of the Female Sun, whose daughter would be the mother of the next Great Sun. This ensured that the chiefdom stayed under the control of the single Sun lineage. Ethnologists have not reached consensus on how the Natchez social system originally functioned, and the topic is somewhat controversial.