Īfter setting up a rebel cell on Yavin 4, General Jan Dodonna decided to honor the Massassi by naming his cell after them. At some point, either as part of the original intent of the building or through ulterior additions, the Jedi splinter group known as the Ordu Aspectu used one of the Massassi temples, the Great Temple, to store information, including a map room that gave directions to their hidden headquarters. Sometime after finishing their temples, however, they went extinct. Whether the Massassi had evolved on Yavin 4 or were a slave race in thrall of the Sith and brought to that moon was unknown, although the latter seemed more likely. The Massassi were a mysterious species that built enormous stone temples of unknown purpose on the fourth moon of Yavin some five thousand years before the rise of the Galactic Empire.

' It's all about the coordinates and the Massassi.' ― Chelli Lona Aphra and Korin Aphra ' What makes you think you can find the Ordu Aspectu now ?'