 Pedro de Alvarado passed through Soconusco with a sizeable force in 1523, en route to conquer Guatemala.Alvarado's army included hardened veterans of the conquest of the Aztecs, and included cavalry and artillery; there were also a great many indigenous allies from Cholula, Tenochtitlan, Texcoco, Tlaxcala, and Xochimilco.Alvarado was received in peace in Soconusco, and the inhabitants swore allegiance to the Spanish Crown.