In Serbo-Croatian: Mačvanska banovina (Serbian Cyrillic: Мачванска бановина), Latin: Banatus Machoviensis, Hungarian: Macsói bánság.

The banate was named after a town called Macsó (Mačva or Macho), but the location of this settlement has not been clearly established in modern times.

After the death of Stephen V, the strengthening of the defensive character seems to have been decisive, and six new fiefdoms were established between Croatia and the Banate of Szörény.

During the Interregnum after the death of Andrew III, the power-gap let Bulgarians and Serbs to became the rulers of the region, and the Wallachians, who were in the course of becoming a nationality.

In the 1370s it was captured by Serbian Prince Lazar who in 1377–1378 donated several villages in Macsó to his newly founded monastery of Ravanica.

Lazars's son despot Stefan Lazarević was officially granted with possession of Macsó by King Sigismund of Hungary in 1403 as a vassal of the Hungarian ruler.