Dandy the knave of hearts. 

A 15th century dandy is more of a collective image rather than a certain personality. A dandy of king's Henry VII time, the time of 15th and early 16th centuries, is said to have a special distinctive feature - an enormous hat with long colored feathers (reminds of a knave of hears card, right?). It was quite hard to wear such a big hat without it falling off or moving about, therefore a casual kind of practice emerged when dandies started slinging it behind the back. Who said it's easy to act like a real dandy?
In general, male's costume of the 15th and early 16th centuries is described as rich and magnificent. From this it becomes clear why dandies of king Henry VII's time gave preference to bold colored stocking and breeches. It's all about standing out from the crowd. So typical of a real dandy. 

Image Courtesy: Wikipedia