challenge: Who was vested with the villages of Roßdorf and Gundernhausen in the year 1250?
  
  A. Abbot Heinrich
  B. Landgrave Heinrich III of Hesse and Abbot Heinrich
  C. Counts Diether and Eberhardt I of Katzenelnbogen
  D. Landgrave Heinrich III of Hesse
  Answer: 