The Aztec princes made use of the incentives employed by European monarchs to excite the ambition of their followers. They established various military orders, each having its privileges and peculiar insignia. There seems, also, to have existed a sort of knighthood of inferior degree.[86] It was the cheapest reward of martial prowess, and whoever had not reached it was excluded from using ornaments on his arms or his person, and obliged to wear a coarse white stuff, made from the threads of the aloe, called _nequen_. Even the members of the royal family were not excepted from this law, which reminds one of the occasional practice of Christian knights, to wear plain armor, or shields without device, till they had achieved some doughty feat of chivalry. Although the military orders were thrown open to all, it is probable that they were chiefly filled with persons of rank, who, by their previous training and connections, were able to come into the field under peculiar advantages.[87] The dress of the higher warriors was picturesque and often magnificent. Their bodies were covered with a close vest of quilted cotton, so thick as to be impenetrable to the light missiles of Indian warfare. This garment was so light and serviceable that it was adopted by the Spaniards. The wealthier chiefs sometimes wore, instead of this cotton mail, a cuirass made of thin plates of gold or silver. Over it was thrown a surcoat of the gorgeous feather-work in which they excelled.[88] Their helmets were sometimes of wood, fashioned like the heads of wild animals, and sometimes of silver, on the top of which waved a _panache_ of variegated plumes, sprinkled with precious stones and ornaments of gold. They wore also collars, bracelets, and ear-rings of the same rich materials.[89] Their armies were divided into bodies of eight thousand men; and these, again, into companies of three or four hundred, each with its own commander. The national standard, which has been compared to the ancient Roman, displayed, in its embroidery of gold and feather-work, the armorial ensigns of the state. These were significant of its name, which, as the names of both persons and places were borrowed from some material object, was easily expressed by hieroglyphical symbols. The companies and the great chiefs had also their appropriate banners and devices, and the gaudy hues of their many-colored plumes gave a dazzling splendor to the spectacle.