When the Spanish arrived in western Nicaragua in the early 16th century, they found three principal tribes, each with a different culture and language: the Niquirano, the Chorotegano, and the Chontal. Each one of these diverse groups occupied much of Nicaragua territory, with independent chieftains who ruled according to each group's laws and customs. Their weapons consisted of swords, lances, and arrows made out of wood. Monarchy was the form of government of most tribes; the supreme ruler was the chief, or cacique, who, surrounded by his princes, formed the nobility. Laws and regulations were disseminated by royal messengers who visited each township and assembled the inhabitants to give their chief's orders.