Simplify the following text for a Grade 7 native English-speaking person.
Original: The Battle of Poitiers was fought between the Kingdoms of England and France on 19 September 1356 near Poitiers , resulting in the second of the three great English victories of the Hundred Years ' War : CrÃ cy , Poitiers , and Agincourt .
Simplified: The Battle of Poitiers ( 1356 ) was one of the three most important victories for England over France in the Hundred Years ' War .