10743
Plot After a short prologue , in which the narrator names himself and from which we have most of our information about Hartmann von Aue , the story begins : Heinrich , a young Freiherr ( baron ) of Ouwe in Swabia commanding great material wealth and the highest social esteem .
 Hartmann von Aue
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hartmann von Aue