HIDDEN FAMILIES, these families are the second family for the top 3 of the royals, they are more like a code name that reign the underworld globally these were founded when Liz, Vince, and Will took over their empires, and they took over the old gangs. When the boys turned 15 years old, And Liz was 8 years old (yes 8 years old).
Blackstone - Represented by the WOLF'S BANE flower.
Phantom - The LILY OF THE VALLEY flower speaks for itself.
Walker - Demonstrates by himself the flower MORNING GLORY.
The three are the Night's Emperors, as they're commonly called. They have power over three quarters of the Underworld, the three took possession and created the Hidden Families about 12 years ago, and since then they reign with a mighty hammer.