Mankjur's nisbah is given variously by the sources as al-Ushrusani or al-Farghani,[REF] respectively indicating an origin from the Central Asian provinces of Ushrusana or Farghana.
According to Vladimir Minorsky, the Mingechaur ford (now the Mingachevir reservoir) of the Kura River was named after Mankjur, who may have been active in the area during his time in Adharbayjan.