Takeover of Mandalore/Legends

"Listen, Duchess. Do you hear the people? They cry out for change. Your weak-minded rule of Mandalore is at an end. The resurrection of our warrior past is about to begin."

- Pre Vizsla

Around 20 BBY, Darth Maul led his Shadow Collective in a takeover of the planet Mandalore.

Defeat of the New Mandalorians
As part of Darth Maul's plot, the Shadow Collective attacked police forces throughout Sundari, showing the citizen populace that the New Mandalorians were weak and unable to defend themselves. Pre Vizsla then stepped in with the Death Watch, defeating the invading criminals and imprisoning Duchess Satine Kryze within the Sundari Royal Palace. Vizsla also betrayed his allies, the Sith Lords Darth Maul and Savage Opress, and had them imprisoned as well to solidify the Death Watch's grip on Mandalore.

Maul vs. Vizsla
Following Vizsla's victory, Maul and Opress broke out of the prison. Maul challenged Vizsla to single combat and won in the resulting lightsaber duel, killing Vizsla. The majority of the Death Watch accepted Maul as their new leader, but Vizsla's lieutenant, Bo-Katan, refused to recognize the rule of an outsider and took several loyal Death Watch soldiers, including ones from her Night Owls, to rebel against Maul's leadership. Maul re-installed the former Prime Minister, Almec, in that role, remaining the true leader of Mandalore while letting Almec govern in public.

Appearances

 * Star Wars: The Clone Wars: Darth Maul: Shadow Conspiracy