Editors. "The Battle of Posada". The Literary Encyclopedia. First published 01 May 2009
[http://www.litencyc.com/php/stopics.php?rec=true&UID=7128, accessed 20 June 2013.]
It was fought between Basarab I of Wallachia and Charles I Robert of Hungary. The Wallachians were victorious and obtained the independence of their principality.