Jerónimo de Vivar
Jerónimo de Vivar was a Spanish
Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 historian of the early conquest and settlement of the Kingdom of Chile, and author of Crónica y relación copiosa y verdadera de los reinos de Chile.

Little is known about his life except that according to his own conclusion to the Crónica he was born in Burgos, Spain. He had come to the Indies some time before coming to Chile
Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

 but no record of his passage was recorded. It is thought he arrived in Chile with the forces returning in 1549, from Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

 with Francisco de Villagra
Francisco de Villagra
Francisco de Villagra Velázquez was a Spanish conquistador, and three times governor of Chile.-Early life:Born at [Santervás de Campos], he was the son of Alvaro de Sarría and Ana Velázquez de Villagra, who were not married. For this reason he took the name of his mother...

 overland. This gave him an opportunity to make detailed observation on the places and people in northern Chile that appear in the Crónica.

Vivar was an eyewitness to some events, like Pedro de Valdivia
Pedro de Valdivia
Pedro Gutiérrez de Valdivia or Valdiva was a Spanish conquistador and the first royal governor of Chile. After serving with the Spanish army in Italy and Flanders, he was sent to South America in 1534, where he served as lieutenant under Francisco Pizarro in Peru, acting as his second in command...

's overland expedition to settle Concepcion
Concepción, Chile
Concepción is a city in Chile, capital of Concepción Province and of the Biobío Region or Region VIII. Greater Concepción is the second-largest conurbation in the country, with 889,725 inhabitants...

 and the Battle of Andalien
Battle of Andalien
The battle of Andalien, fought in early February 1550, was a night action between 20,000 Mapuche under the command of their toqui Ainavillo and Pedro de Valdivia's 200 Spaniards on horse and afoot with a large number of Yanacona including 300 Mapochoes auxiliaries under their leader...

 in 1550, some of the sea voyages described, and the expedition to settle Valdivia
Valdivia, Chile
Valdivia is a city and commune in southern Chile administered by the Municipality of Valdivia. The city is named after its founder Pedro de Valdivia and is located at the confluence of the Calle-Calle, Valdivia and Cau-Cau Rivers, approximately east of the coastal towns of Corral and Niebla...

 and the exploration of the surrounding area. He often wrote based on reports of others that had witnessed the events from the time of the first settlement, including official documents. Because of similarities to these documents some historians believed he was actually Valdivia's secretary, Juan de Cárdenas writing under a pseudonym. However a study of their known movements and activities precluded that being the case.

It is thought that he was working to compile a detailed account of the history of the conquest and an account of the land of Chile promised by Pedro de Valdivia to the king of Spain in a letter of 1552. This task he finished while in Santiago, in 1558 according to his colophon in the book. Nothing more is known about him. His book remained a manuscript. It was known to the Chilean historian Diego de Rosales
Diego de Rosales
Diego de Rosales was a Spanish chronicler and author of Historia General del Reino de Chile.He studied in his hometown, where he also joined the Society of Jesus. He came to Chile in the year 1629, without having taken his last vows still being sent to the residence that the Jesuits had in Arauco...

writing in the following century and listed by a few other compilers of historical documents at that time. It then disappeared and was only found in the middle of the Twentieth century, being first published by the Fondo Histórico y Bibliográfico José Toribio Medina in 1966.
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