Mandalore the Malevolent

Ren Kryze was a male mandalorian warrior that rose to the leader of the mandalorians as mandalore the malevolent. During the time of the sith eternal Ren lead a rebellion to help destroy the sith eternal empire and bring freedom to mandalore from the sith's rule. He and former sith captain Vortan formed an alliance and began building an army to destroy the sith.

Battle for Mandalore
Ren lead the mandalorian rebellion against the sith on mandalore where he met and fought Darth Hydra. Ren was successful and caused Hydra to retreat the duel and later lead his forces to victory destroying all remaining sith forces on mandalore.

Fall of the Sith Eternal and hidden plans
After being broken out of a sith supermax prison, Ren continued his fight against the sith and once the sith eternal fell, Mandalore observed the galaxy it was in a weak state and he began making preparations for his hidden plan all along The next mandalorian crusade.