 After this, the Spanish referred to the river as the "Río de Alvarado" ("Alvarado's River").A little further along the coast, the fleet encountered settlements under Aztec dominion, and was met by Aztec emissaries with gifts of gold and jewels sent by the Emperor Moctezuma II.As punishment for entering the Papaloapan River without orders, Grijalva sent Alvarado with the ship "San Sebastián" to relay news of the discoveries back to Cuba.