Winged Hussar

The House of Vasa ruled Sweden and much of Poland during the 16th and 17th centuries. During this time, medium cavalry called hussars dominated battlefields in Central and Eastern Europe. Although originally borrowed from regiments in Hungarian armies, the hussars of Poland became the most notable variant for their prowess on the battlefield and their flamboyant attire. Charging into battle with formidable armor and wings attached to them that created an ominous rattling sound, these horsemen struck fear into even the most hardened armies of the time.

From the game's History encyclopedia, AoE3: DE 100.19.18309.