Pre-Islamic Arabia
There appears to be some evidence for the presence of matrilineality in Pre-Islamic Arabia, in a very limited number of the Arabian peoples (first of all among the Amorites of Yemen, and among some strata of Nabateans in Northern Arabia); on the other hand, there seems to be some reliable evidence for the presence of matrilineality in Islamic Arabia, the descendants of prophet Muhammad 12 imams are said to be from the lineage of his daughter Fatima termed as "sons of Fatima"