Originally Posted by
Sar1n
That's not really helpful, first thing that anyone would check.
But frankly, there won't be much, if anything. Caparisons were used by Europeans, and maybe some partials by Seljuks, but metal horse armour wasn't common, mostly because there were few, if any, horse breeds strong enough to carry it and rider in heavy armour. Nisean breed, used by cataphracts, was just about extinct by then, Middle Eastern horses were by then bred more for agility and European breeding hasn't yet reached point where most warhorses could carry metal armour.
Though if you are determined to try...assuming you tried the basic google search, a good way would be to try searching for specific piece+timeframe and location. Chanfron (head armour) and peytral (chest armour) were most common parts of horse barding.