He was probably responsible for an assize making all rear-vassals directly subject to the king and eligible to appear at the Haute Cour. Amalric had an enormous curiosity, and William was reportedly astonished to find Amalric questioning, during an illness, the resurrection of the body.
He likely influenced a legal decree making all vassal subjects of the king directly accountable to him and eligible to appear before the Haute Cour. Amalric possessed an insatiable curiosity, which led William to be astonished by Amalric's questioning about the resurrection of the body during illness.