Mount & Blade II: Bannerlord

my friend got this in a land battle against a rebel lord on veteran difficulty with "clan member death possibility in battles" on 50% and "disable battle deaths for player hero" when he finished the battle, there was a notification in the bottom left that the rebel lord had died and it popped. He also sent troops to do it, he did not get the killshot on the lord.

I can confirm that the battle can also be simmed, and based on what I'm hearing theres a 10% chance for the rebel leader to actually die in battle, and no perks can increase that chance. So if you see the option to take him as a prisoner after the battle just reload the save.

AND UNASSIGN YOUR MEDIC SO THE CHANCE OF THEM BEING PRISONERS DOESNT GO UP

MUST have battle death enabled in the campaign options having is disabled for player hero is fine clan member death possibility is a non factor, when you find a king or queen in battle make a save before you fight then send troops if they don’t die load the save BUT you must move on the map before fighting them again or you will have the same outcome again and again. Make sure after every battle the death and kill numbers are different then you will know you’re doing it correctly the RNG is still low chance for death but keep trying and you will get it, also if you have the medicine perk doctors oath remove your surgeon from the role on the clan/party tab

I got this achievement by killing King Derthert, but any king or queen will do. I found him in the open world and made a new save right next to him, enabling “Battle Death For All Heroes”. I also put on Clan Member Death Possibility at 50% to be safe but I don’t think that matters.

At first I went into the battle and personally axe’d him at least 20 times but never got a red skull. I checked the scoreboard and saw it was a Wound. I thought going into battle personally might increase my chances but who knows. I then resorted to simulating the battle, which is much faster and after about 30 attempts I saw the nice 1 under Skull for Derthert pop on the scoreboard and got the notification “Derthert has died on the battlefield.” at the end. After going back to the map and running around for 10 seconds or so the achievement popped.