Besides the eleven, who are the other possible wives of Muhammad?

It seems Prophet Muhammad definitely had eleven wives, and possibly more. These eleven women are: 1. Khadijah , 2. Sawda , 3. Aisha , 4. Hafsa , 5. Zaynab bint Khuzayma , 6. Umm Salama , 7. Zaynab bint Jahsh , 8. Juwayriyah , 9. Ramlah , 10. Safiyah , 11. Maymunah . These seem established, and this matches an Islam Q&A fatwa . However, the Wikipedia page previously (18 January 2017 ) said: "...the thirteen women..." And the Islam-critical site WikiIslam writes: "...a total of fifteen women, though only ever eleven at one time.." (citing The History of al-Tabari (vol. IX) The Last Years of the Prophet: The Formation of the State.) **Question**: Besides these eleven, who are the other possible wives of Muhammad? Doing some searching, others possible wives include 12. Maria (listed here ) and 13. Rayhaanah bint ‘Amr al-Nadariyyah (mentioned in the Islam Q&A fatwa ), which I think is the same person as Rayhana bint Zayd on Wikipedia. There may be more I haven't found yet.