03-24-2014, 08:34 PM
The requirement of stirrups for couched lance combat is an outdated idea proposed by Lynn White in 1962 to support his feudalism theory. It has been discredited for a couple of decades. This might be worth reading.
http://www.classicalfencing.com/articles/shock.php
http://www.classicalfencing.com/articles/shock.php
Author: Bronze Age Military Equipment, Pen & Sword Books