John was responsible for the loss of Normandy
He caused many problems due to his marriage to Isabelle of Angouleme in 1200
John should have paid Hugh Lusgnan compensation
John focused on recruiting other barons rather than fighting Philip
John lost his barons due to his mishandling of affairs so they joined Philip
the speculation of the murder of Arthur created mistrust
John's mercenaries' Brutal behaviour towards civilians made John's reputation worse