An account of the life and circumstances of a little known Augustinian friar with an interesting career, Johannes Klenkok. Author Christopher Ocker attempts to reconstruct his biography more accurately than has been achieved up to now, but in so doing he considers as much as possible the organizations and habits that Klenkok shared with those among his contemporaries of a similar station in life, namely, mendicant friars. The sources led Ocker to pay particular attention to the character of education within the mendicant orders and to Klenkok's campaign against the "Sachsenspiegel, " the first written code of traditional German laws.