I've not had too much luck research Lawrence, but I've always been slightly curious as to what happened to him. There is one clue on this list that I did not have before: his age.
Knaebel and his wife were renting rooms from Barbara Bieger that were adjacent to her tavern. I've always wondered what happened to him and have also wondered if he had some connection to the family.
Maybe his pardon records will provide an additional clue.