Complex sentence: The castle brought with it the entailed title of "Vidame de Chartres": this was an ancient feudal title: in the Middle Ages a vidame commanded the military forces of a bishop and performed other duties unsuitable for a man of the Church.
Split into simpler sentences: The castle brought with it the entailed title of "Vidame de Chartres"; this was an ancient feudal title. In the Middle Ages a vidame commanded the military forces of a bishop and performed other duties unsuitable for a man of the Church.