For the Aztec conquest period, Eureka have 2 mounted swordsmen, one is a spitting image of Cortes and his particular armour layout, the other probably close enough to Sandoval. Kosta or the website probably has the pack details, I received them pre production. I have a mounted GW figure of some kind picked up randomly as part of Pizzaro, or something similar, with metal barded horse. The previous owner painted it gold, it makes me think of the Saint George appearance that inspired a particular conquest battle and is how I intend to use that figure.
For the Aztec conquest period the general was a front line trooper, in the thick of fighting constantly, often wounded as a result, fully armed and armoured.