See that knight's coat-dress type thing? It's called a surcoat - a sleeveless coat which knights wore over their armour.
And remember Erotokritos? When I last left it, a tournament had begun, where every participant is carefully described. The knight's clothing and his motto give clues as to his personality and also to his lovelorn status in the age of courtly love:
In an all-green surcoat with golden eagles in the middle there also came the young nobleman who was called Iraklis. He ruled cities and villages in the regions of Egripo, and in manliness and wisdom he had no peer. The painting on his helmet was skilfully done and with its motto told of the longing of his heart: there was a fountain running with clear, icy water, and opposite it a tree shrivelled up and withered, without flowers, without shoots, without fruit or apples; the branches and leaves were shown wilted. In the middle of the tree were golden letters which told of the youth's complaint and suffering, 'I stand and watch the fountain; it will not refresh me but leaves me to wither. It makes no right judgement.'
p44, Erotokritos by Vitsentzos Kornaros (translated by Gavin Betts, Stathis Gauntlett & Thanasis Spilias for the Australian Association for Byzantine Studies, Byzantina Australiensia 14, 2004; ISBN 1876503122)