The Frankish army of Charles Martel crushed the Arab cavalry of d’Abd al-Rahman, marking the most northerly reach of the Arab advance into Europe.
Editors. "Battle of Poitiers". The Literary Encyclopedia. First published 17 November 2005; last revised 30 November -1.
[http://www.litencyc.com/php/stopics.php?rec=true&UID=1638, accessed 26 April 2015.]