As the utmost harmony subsisted between Alvarado and the natives of Guatimala, the chiefs of that nation represented to him that a nation in their neighbourhood, called the Altitlans, who occupied several strong fortresses on the side of a lake, had refused to make submission to him, and that they were a barbarous and malicious people. Alvarado sent a message commanding these people to submit, but they abused his messengers; on which he marched against them with 140 Spanish soldiers and 2000 warriors of the Guatimalans, and was resisted by a strong force of the Altitlans, whom he soon defeated with considerable loss, and pursued to their fortresses on the lake. Having driven them from these fortresses, they took shelter in an island of the lake, to which he sent several of their chiefs whom he had taken prisoners, to persuade them into peace and submission, in which he at length succeeded, partly by threats and partly by promises, and returned to Guatimala. Father Olmedo exerted himself so effectually in his mission, that he prevailed upon the people to imitate our example, in adoring the holy Virgin, for which purpose he erected an altar and image of our lady, and explained the mysteries of the Christian faith to the natives. A people named the Pipiles, who came from a considerable distance towards the south, to enter into submission to Alvarado, informed him that a nation in their way, called the Izcuintepecs, were of a malignant disposition, and maltreated all travellers through their country. He sent, therefore, a message to invite them to come in and submit, which they refused to comply with; for which reason he marched into their country with his whole force, united to a strong body of his allies of Guatimala, and made great havock among them. Not having been present in this expedition, as I did not go into the province of Guatimala until my return from Higueras, I have only given a short summary of the conquest of Guatimala and its dependencies, which may be found related at full length in a book written by Gonzalo de Alvarado.