Here's a good question to start a topic on about Elmet - for he was Welsh!
But he seems to have played rather a big part in the Battle of Towton. He gets no mention in the usual writings of the battle but his family history tells otherwise. The Mathew family history tells how he saved the life of Yorkist King Edward at the battle when the Lancastrians had pushed them back into Saxton.
Now this could all be just family glorification for no one has ever stated that Edward's life was at immediate risk, nor that the Yorkist faction were ever pushed back to Saxton, but this Welsh lord seemed to have done very well for himself after the fight.
His coat-of-arms boasted "TOWTON" over it from then on; he gained lands in south Wales and he was made Standard Bearer of England immediately afterwards. So something he did certainly got the attention of the King.
I have found no more about this man in the past six years but if anyone can confirm, discredit or add to these claims then it may go a long way to changing our view of the battle.