|English||Highest Great Hollow|
|Notable Members||Baraggan Louisenbairn, Szayelaporro Grantz, Ulquiorra Schiffer|
In ancient times, Hollow evolution was chaotic. Hollows sought a humanoid form but were unable to do so without a strong will. However, the ancient Hollow, Baraggan Louisenbairn, and a group of Hollows that followed him, learned to evolve beyond the Adjuchas level and became the first Vasto Lorde.
Vasto Lorde are the rarest sub-species of Hollows. They are distinguished from the uniform Gillians and the more animalistic-looking Adjuchas by their roughly Human shape. Their population lives deep in Hueco Mundo, rarely to be seen. Because of their compressed form, Vasto Lorde have exceedingly dense Reiatsu.
Simply eating a vast amount of other Adjuchas will not trigger the evolution into a Vasto Lorde. Instead, it is believed that Hollows are "born" with the ability to evolve into Vasto Lorde. Those who were not born with this undefined trait will not become Vasto Lorde no matter how many Hollows they devour.