The black field of his "shield for peace" is well documented (see Arms and heraldic badge above). However, there is no sound evidence that Edward ever wore black armour, although John Harvey (without citing a source) refers to "some rather shadowy evidence that he was described in French as clad at the battle of Crécy ' "en armure noire en fer bruni" ' – in black armour of burnished steel". Richard Barber suggests that the name's origins may have lain in pageantry, in that a tradition may have grown up in the 15th century of representing the prince in black armour. He points out that several chronicles refer to him as Edward the IV (the title he would have taken as King had he outlived his father): this name would obviously have become confusing when the actual Edward IV succeeded in 1461, and this may have been the period when an alternative had to be found.