Who was a Livonian Master last: Dietrich von Grüningen or Andreas von Stierland?
return Dietrich von  Grüningen was  a Livonian Master ;return Andreas von  Stierland was  a Livonian Master ;return when  was  #1 ;return when  was  #2 ;return which is the  highest of #3 ,  #4
['select', 'select', 'project', 'project', 'comparison']