A brass of a knight of the Cuttes family in Arkesdon church, Essex (1410), is a good example of what may be termed the development of épaulières into pauldrons. Passe-gardes, generally applied to 'Maximilian' armour, are really to be found occasionally much earlier, as an example in Southerly church (1479) shows. The Beauchamp brass figure at Warwick (1439) shows the passe-garde, but the general character of the armor indicates a later date of make.
Source: wiktionary