Lol i know im sorry i want alot . But for my teutonic set i would say, 1200-late 1400s, northern europe, teutonic order
1200 to late 1400's is the complete progression from maille to full plate and everything in between. Describe what you want to be wearing.
To give you some options here are some approximate ideas of what might be typical for a given time span, when we mean narrow down your interest, we're talking a span of a couple of decades, not a full or even half century:
1200 - 1300 - Maille covering virtually your whole body, steel helmet ranging in style from norman conical helms to topfhelms, think crusades
1300 - 1330ish - plate bits are starting to appear, things like simple knee cops and elbow caps over your maille. Steel helm may be something more akin to a Great Helm at this point
1340-1360's - now we're adding more plate bits, greaves and cuisses are making appearances, more elaborate arm defenses and body protection like a coat of plates, helmets are early bascinets and klappvisors, great helms
1360's - 1400's - full plate harnesses, steel breastplates, leg harnesses and arm harnesses, bascinets (klappvisor or hundsgugel)
1400's - 1420's - Improved plate armor, now your breastplate is a full cuirass (backplate included) with fauld (skirt of steel around the hips). Helmet is going to be something like a grand bascinet
mid 1400's - Sallets, Armets and Barbutes for helmets, plate continues to improve...