Patriarch

The Patriarch is the krogan adviser of Aria T'Loak. He was the ruling crime lord of Omega space station at the time of Aria's arrival. Oblivious to her ambition, he hired her to work for him. Aria quickly climbed through the ranks, becoming one of the Patriarch's most trusted lieutenants.

After a hundred years, the Patriarch attempted to eliminate Aria. However, his men had become accustomed to certain fringe benefits from working with Aria's asari. With his men abandoning him left and right, Aria then challenged him to single combat in the Afterlife Club, ultimately emerging victorious and seizing his place as Omega's de facto ruler. She kept the mighty krogan warlord around as a "trophy" and a warning to all who would dare challenge her power, renaming the once-mighty warlord "Patriarch", a word which has no meaning in her language, with the intention of mockery, but eventually came to respect it.

However, the Patriarch is in danger as someone has ordered a hit on him and Aria wants Commander Shepard to keep her "trophy" safe. Shepard has the option of persuading him to go into hiding exactly as Aria requested or eliminating the assassins on his behalf as his krantt, thus restoring his status as a political powerhouse in Omega. Alternatively, through Renegade dialogue choices, Shepard can convince Patriarch to make a last stand but he will die doing so.

Trivia

 * The Patriarch can be heard giving an advice to one of his fans about how to recognize a traitor during a funeral. This may be a reference to the movie The Godfather.