Original sentence: The ambassador prepares for war; the Dutch embassy of  Arnauld de Pomponne, l669-l67l.Under his tutelege, Rowen completed his doctoral dissertation on "Pomponne and De Witt (1669-1671); a study of French policy on the eve of the Dutch War" and was awarded his Ph
Edited sentence: The ambassador prepares for war; the Dutch embassy of Arnauld de Pomponne, l669-l67l.Under his tutelage, Rowen completed his doctoral dissertation on "Pomponne and De Witt (1669-1671); a study of French policy on the eve of the Dutch War" and was awarded his Ph