In the center of the continent, lies the fens of Baal, home to a group of goblins which would be called a culture, were those inclined to use the word not loathe to apply it to goblins.
Goblins are, generally speaking, small, fecund and highly variable, and often lacking in much in the way of a social structure more complex than “horde” (or so the general opinion goes). The goblins of Baal, on the other hand, squatting in their murky dens dug into the muck, have established a matri-oligarchy, similar in some ways to a hive of social insects.
The culture of the Baal goblins is ruled over by a group of fertile females, called Brood-matriarchs, whose primary function is to become pregnant and give birth to litter after litter of goblins. Because goblin life tends to be short, often artificially so, due to lack of caution or extermination with extreme prejudice enacted by neighbouring cultures, the typical goblin hyper-fertility has started to be seen as a blessing by the Baali goblins.
Holding the blessing of their god, and controlling, literally, the means of production of new goblin warriors, the fertile females of Baal rose to power. They receive counsel from other goblins more able to travel, but make all decisions for the clan. They are always pregnant, or nursing and receiving males to become pregnant. The opportunity to become the father of part of the next generation has become a highly sought after form of prestige amongst the males, and copulation with a brood-matriarch has become a reward for those who perform valuable services for the clan, and those who perform their duties above and beyond all expectation. The opposite fate, awaiting those who too-frequently fail their clan, is castration, the utter revoking of the opportunity to ever serve the clan as anything more than fodder or labor. Those who fail again after already being castrated are often given the duty of guarding the brood matriarchs. Far from the honor this might be seen as, it is a constant reminder, in the form of the wanton and lascivious brood-matriarchs and their open rutting with more honored clan members, of the guard’s failure and the fact that he cannot perform for his clan the highest service a male goblin can-fathering the next generation.
As they are the direct power behind the greatest strength of the goblins–numbers–the brood matriarchs receive the greatest respect, honor and treasures of the clan. They have no responsibilities, only privileges. The privilege of giving orders, the privilege of not working, the privilege of food at their mere request, the privilege of their pick of mates, and the privilege of the spoils of raids.
Not all females of the clan are brood-matriarchs, however. When a power behind being fertile began to condense, those females of the time who were pregnant sealed that power away. They, essentially, created an eldritch poison which made females barren when ingested, and had shamans enchant their bodies to produce this poison in their milk. They then created an antidote, and jealously guarded that formula. When a female goblin has proven worthy of great honor, she may be selected for possible fertility, and given the choice. Should the female accept, she will be given the antidote, and shortly become fertile and take her place. If she declines, she is given another position of high honor–high priestess. All females of the Baali goblins serve the shrines in some function, usually as acolytes, but only those who have proven their worth to the clan, and decided that brooding is not a life for them, may lead the clan’s holiest rites.
The goblins of Baal are otherwise normal goblins for the most part. However, the brood-matriarchs keep a constant watch for strong males who could potentially pass their strength on to children. Due to the highly adaptable nature of goblins, they are able to be impregnated with almost any male’s material. The mother’s system will pick out the most useful traits and add them to the genetic concoction assembled from her many paramours, and, after a certain period of time, begin to grow the fetuses of the new litter, saving copies of the best genetics to potentially impart on the next, much like a cat’s reproductive system save with a complex and sophisticated intelligence all its own.