The Kingslayer in "Mount and Blade 2" is a very difficult achievement in the game. If you want to achieve the achievement, you need to kill a king or queen in battle, but the probability of the king and queen dying in battle is It's too low, the best way is to use the javelin to brush slowly, and when you see the queen, throw it with the javelin.
How to achieve the achievement of Regicide
The achievement "Kingslayer" requires you to kill a king or queen in battle, but kings and queens are difficult to kill. Just use the javelin to kill them slowly. When you see the king or queen, just use the javelin to throw them.