Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Vive le Roi

Mr. Duby gives an excellent account of the Battle of Bouvines. A little known battle in history books, but one of important ramifications. A well loved King ( Phillip II Augustus) of France defeats two conspiring enemies Otto of Germany and his uncle John Lackland of England. The book not only gives accurate descriptions of the battle, culture and politics of medieval Europe,it also includes the role of the Church. In addition, certain events such as King John's signing of the Magna Carta in 1215 forever limiting a King's authority in England are described as after effects of this Battle. A great read.