When you are victorious against an army at war _mount and Blade II: Bannerlord, _ You get a handful of their forces after the victory, as well as the loot they wore. For those who fight against more important factions and face a leader of this group, you can get a lord as a prisoner.

How to Capture & Execute Prisoner - Mount & Blade 2: Bannerlord

Rather than ransom or keep them as prisoners, you have the opportunity to execute them. The lords and faction leaders are the only members of the game that you can execute freely. You can’t do that with the other prisoners of the match. If you want to withdraw some of your prisoners, you can choose to release them, add them to your army or sell them to one of the large colonies you visit.

When you wish to execute one of the lords you have in the tab of your prisoner, go over the party menu and highlight the one you want to execute. You should have the available option, which is the skull and bone icon when you choose the Lord. You receive a brief warning just before running them. The game warns you that this will have negative impacts on your reputation, reducing your relationships with the faction members associated with this person. This kills the Lord of the game and you will no longer see them during the campaign.

Decide if you think it is not worth pursuing positive relationships with factions members outside this group. However, if you eliminate everyone in a faction, everything they had becomes separated from your clan. For those who wish to obtain everything from a rival faction, you will find some positive points in the execution of this action, but you must go through each member of this faction. You can’t get away from it.