What is "motherhouses"

Usage examples of "motherhouses".

For example, there are those members in this Motherhouse-and in other motherhouses, in Amsterdam or Rome or the depths of the Louisiana swamp-who have laid eyes upon vampires and werewolves, who have felt the potentially lethal physical telekinetic powers of mortals who can set fires or cause death, who have spoken to ghosts and received answers from them, who have battled invisible entities and won-or lost.

It seemed inconceivable that such a man had ever enjoyed the wintry comforts of Talbot Manor, or the luxury of the motherhouses of the order, to which he was somewhat addicted now.

I'll start in the Motherhouse in Louisiana and then I'll move to the Motherhouses all over the world.