The Lord Protector's Planet, also known as Eldred's planet, was a world in the Pegasus galaxy occupied by a primitive people, under rule of the Lord Protector who resided in the central spire of a mostly-buried Ancient city-ship. The planet was defended by a salvo of Ancient Drone weapons, which emerged from the ground when the Wraith attempted to cull the population.
A smattering of villages were scattered around the tower, permitting easy access via the Lord Protector's Guard. The city-ship possessed at least one, almost depleted, Zero Point Module. However Dr. Rodney McKay depleted it by powering the city-ship's Stardrive in order to save a nearby village. (SGA: "The Tower")