Robert de Vere, 6th Earl of Oxford. I haven´t found any evidence that he was at Bannockburn but he fought on Edward´s campaigns so why wouldn´t he have been there?
The Coat - of - arms? Quarterly or and gules in the first a mullet argent all within a bordure indented sable? . Generally the De Vere Coat - of - arms is ; Quarterly or and gules in the first a mullet argent without the indented border. The bordered Version turns up in the roll temp. Ed II.
Robert is a conversion from the English Cavalry of Edward I set. (third row , far left the one with the huge axe) Head swop from the spares box (Zvezda english Knights,) his left arm re-positioned and a mace from Accurate´s Hundred Years War Knights Of France
How did Robert´s nag get it´s coat? It doesn´t take much, some tissue paper, pair of scissors, craftknife, some PVA and liquid contact glue a pair of scissors and a toothpick.
Simply remove any harness´s, trappings and the Mane. Removing the halter is fiddly. Cut out three pieces of tissue paper as in the pic. Single ply is best. It´s very thin but with care it won´t tear. The two pieces to the right of the pic go either side of the front of the horse.
Smear any area of the nag that are likely to come into contact with the pieces of tissue paper with watery PVA and attach. This will take a bit of practice but using a toothpick you can move the paper into place. Leave to dry. At this Point don´t try smoothing out any tiny lumps etc. In about half an hour (depending on the thickness of the PVA), it will be possible to do a bit of smoothing but until the glue has set a bit the fibres just tear away.