Manuscript Miniatures Note that the Lyon Grandes chroniques de France looks later than 1380 to me and the Lyon library dates it to the end of the 14th century.
Effigies & Brasses Both of these are limited to England, France, Belgium and the Netherlands.
Why the particular date range? Because I'm part of La Belle Compagnie. In addition to the years leading up to Agincourt, we do a 1382 and a 1386-7 scenario, John of Gaunt's expedition to Galicia, which is well suited to the weather at a June event we do in Cape May NJ. I was going to take it back to only 1377, but adding two years brought in a lot more images.
The Amor of Charles VI at Chartres, ca. 1380
The Black Prince and Pembridge helms. By this time, I believe these were for jousts and tournaments, not war. And mostly jousts.
Gauntlets, from before 1361, and probably old at that time, to around 1450.