The Tiawarin is mostly inspired by the Tawantinsuyo, but with a tech level similar of 15th century Europe. The DM gave me liberty to design the armed nobility of the empire, so I heavily inspired their equipment in german armor.
The armor used by them is kinda a mishmash of armor pieces used in Germany during the 15th century. The helmets, the rondels and the faulds are from kasten-brust armors, but the gauntlets and the cuirasses are from gothic and Innsbruck examples of the late 15th century. That type of mail chauses used by the knight on the right are from a manuscript of the very late 15th/ early
16th century.
In combination of those german elements I added a lot of decorations, jewelry and clothing heavily inspired (really copied) by Inca jewelry and tunics.