The first Europeans to visit the region were Spanish conquistadors. Juan de Oñate who lived until 1626, founded what would become the Spanish province of Santa Fé de Nuevo México among the pueblos of the Rio Grande on July 11, 1598. In 1706 Juan de Ulibarri claimed the territory of Colorado. In 1787 Juan Bautista de Anza established the settlement of San Carlos near present-day Pueblo, Colorado, but it quickly failed. This was the only Spanish attempt to create a settlement north of the Arkansas River. Colorado became part of the Spanish province of Santa Fe de Nuevo México as part of the Viceroyalty of New Spain. The Spaniards traded with Native Americans who lived there and established the "Comercio Comanchero" (Comanche Trade) among the Spanish settlements and the Native Americans.