Serer maternal clans or Serer matriclans (Serer : Tim or Tiim; Ndut : Ciiɗim) are the maternal clans of the Serer people of Senegal, the Gambia and Mauritania. The Serer are both patrilineal (simanGol or Simangol) and matrilineal. Inheritance depends on the nature of the asset being inherited – i.e. whether it is a maternal asset which requires maternal inheritance (ƭeen yaay or den yaay) or paternal asset requiring paternal inheritance (kucarla). The Serer woman play a vital role in royal and religious affairs. In pre-colonial times until the abolition of their monarchies, a Serer king would be required to crown his mother, maternal aunt or sister as Lingeer (queen) after his own coronation. This re-affirms the maternal lineage to which they both belong (Tim). The Lingeer was very power