I like that the orc clans intermarry between the clans (it's norm anyways) and they seal deals and such with marriages. As genetic diversity makes clans lineages strong. Ofc there are expection and there are some clans which inbreed a lot. My own take on it is that the clans hold some peaceful clan gatherings (assuming no active war is going on but there could had been in past conflicts between the clans who gather) which under oath of Gruumsh swear not draw blade nor blood in gathering. In the gathering primary purpose is to show off the females who had come to age and they do the ritual mating dance in blessing of Cave Mother and then orcs fight over for the females (popular ones cause big fist fights) and once all other orcs are knocked out the victor then grabs female and runs off the woods/tent and fucks her to claim her (as orc females usually are virgin and so one who spills first seed in her is her husband at that point).<br/><br/>Of course this is normal female orc cycle (which is very submissive sort) as there are expections with the amazon clans where females refused follow the normal way of life and so they got their own mating methods and rituals.<br/><br/>Naturally there could had been many dramas where someone's son kills their father in battlefield (son married to other clan and then was forced fight their own father), but that's honorable way to die in battlefield than crippled in old age and own son doing it can be sense of grim sort pride. Or spite if said father hated his own son and considered as weakling or worthless (not worthy being a heir).<br/><br/>Overall concubines children do not count for inheriting leadership in clans (mates do count). Mates can be married to life or be temporal affairs (as no doubt Razura has got plenty of those). However usually female orcs who break up have harder time to find new husbands (most orcs dislike take 'used goods' but Razura's beauty/charm had done expection and being fertile as she is a big boon). As the mating call dance can be only done by virgin female orcs or female orc who had not been claimed by any orc yet (claiming can occur outside the mating dance through a rape also but it's more hostile take over than do the tradition, still female orc may stick with their rapist as they would be unwanted by other orcs unless their expectional).<br/><br/>All above is merely my suggestion how 'orc culture' works :P. As orc players you can decide cultural lore and customs as you like.