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In my gaming group we have gone with History themed characters. This judges the characters basic lay out. Now we still play 3.5 D&D.
14 century scott: just about any armor (most common is coat of plate, or chain shirt) Great Sword if going as some type of fighter. Mace with buckler if rogue.
500 B.C. Spartan: Short Sword, Short Spear, heavy shield, and bronze breast plate.
Templar Knight: (perfect for paladin sense Templar is a prestige class for them.) Plate Mail, or full plate. Great Helm (a must), Long Sword, Heavy shield. and so on.
It takes a lot of research but it can be fun. Like when you have a 14th century scott and a 14th century english knight working together. Better yet 9th century norseman and 9th century celtic.
I am an Indestructible master of War.
Interesting concept. There is an actual knight class in the phb2 book if you haven't seen it.