This is why in the following series of arms, some are modified with "Might have been" borne by.... Although I make every effort to correctly match the arms to the correct knight, there is room for confusion. Anyone who can offer positive identification with sources is very welcome to comment -- please!
The five knights in this series were connected through common cause against King Henry III and the foreign clerics of the Roman church, who were violating tradition and law and enriching themselves with taxes meant for the benefit of the kingdom and the people.
Leo and April are both related, though not in direct ascendency, to Sir Simon de Montfort, 2nd Earl of Leicester. He might have borne these arms at the Battle of Lewes in 1264 --
gules a lion rampant argent
Simon had an older brother who probably bore these arms until he died in 1241, and then his eldest son would have the same arms until his death in 1249. Simon's nephew left no male heir so Simon might have rightfully borne these arms from 1249 until his death 4 Aug 1265 at the Battle of Evesham. The double tail on the lion is an unusual difference on Simon's family shield.
Tomorrow: Sir Hugh le Despenser
Image from Wikipedia at http://en.wikipedia.org/wiki/Simon_de_Montfort,_6th_Earl_of_Leicester
Creative Commons Attribution-ShareAlike License;
Picture drawn by Odejea on October 2005, the 22nd