David Chongat Yagich (circa 1667-1715) was the founder and first Great Chief of the Great Haruwin of the Selk'nam.
Born Chongat Yagich around 1667, the future Great Chief was the eldest son of a Chief Ich Yagich of the Ona Selk'nam tribe and Arik'nam, the eldest daughter of Chief Arik'ichin of the Gununa Selk'nam tribe. Ariki'ichin died without sons, making Chongat Yagich the heir to the chiefdoms of both the Ona and Gununa haruwin (or hunting territorries). He inherited both at a relatively young age (history is unclear on exactly when or why).
Foundation of the Great Haruwin
Chongat Yagich was skilled in the art of tribal politics, and realized that his local area would be more prosperous if he were to link the many haruwin of the region together into a cohesive unit, avoiding disputes over hunting rights to herds of gunacos. In 1689, he arranged the marriages of two of his sisters to the chiefs of neighboring haruwin, whom he then invited to form a single large haruwin governed by a council. This new "Great Haruwin" formed the foundation of the modern Selk'nam state.
Chongat Yagich was also the first Selk'nam leader to attempt peaceful contact with the Japanese colony of Miyako on the opposite end of the island of Selk'nam Yagich. Previously, the colony had been something of a myth and legend to those on the Eastern shores of the island. Dispatching emmissaries, Chongat Yagich forged a peaceful relationship and struck up a trade in guanaco skins that allowed the haruwin access to some Japanese technology and learning.
Using this new knowlege, he was able to repel and easily conquer tribes that disturbed the Great Haruwin, and his reputation grew around the island as a peacemaker who could bring advancement and stability. The Haruwin quickly expanded around the island, aided by the discovery of mining and iron with Japanese help. Soon, Chongat Yagich and his iron-armed warriors found themselves in control of the entire island, with the excepion of hte Miyako colony in the far West. The nascent state had taken in not only the entire Selk'nam culture, but also the neighboring Haush, Alacaluf, and Yaghan cultures. These three new cultures were adept at fishing and boatmaking, whereas the Selk'nam were known as innland hunters
Chongat Yagich, having encountered foreign colonies, aggressively pursued the development of his own people, leaning heaviloy on the generosity of his freinds in Miyako for advancements in metalurgy, and later on the nearby Welsh colony of De Mor Tir for shipbuilding. By the end of his life, he had transformed the Selk'nam from a hunter-gather people into a budding civilization bent on entering the modern world. He built his camp into the capital city of Ona Yagich, and also founded the coastal city of Miyako Yagich.
He also engineered the Selk'nam's first ventures off the island of Selk'nam Yagich. He sent settlers first to the islands of De Mor Tir (OTL Falklands), where they constructed a settlement, and later to the newly discovered and uninhabited island of K'onip (OTL South Georgia). The De Mor Tir settlement was later integrated into the Welsh colony on the island as part of a diplomatic agreement, but K'onip remained in Selk'nam hands and would go on to play an important role in Selk'nam history.
Conversion to Catholicism and Assassination
As the Haruwin came into contact with the neighboring Welsh colony of De Mor Tir, Welsh Catholic missionaries wer allowed into the Haruwin. They foun success especially on the isle of K'onip where a converted Selk'nam, Franciscan monk who called himself Maughold has set up a small monastery. Maughold came to weild great influence in K'onip and eventually became popular with the intelligentsia in Ona Yagich. Chongat Yagich had himself began to question the traditional shamanic beliefs of the Selk'nam, and had committed to reading both Christian and Taoist writings in a search for truth. This search lead him to invited Maughold to his "palace", where he quickly became a secret confidant.
In 1715, Chongat Yagich decided to publicly announce his conversion to Catholicism and be baptized into the faith. He did this at a large public event in On Yagich's central square, taking the baptismal name David as he was baptized by Mauhgold. However, a group of radical shamans stormed the stage after the baptism and killed both Maughold and the newly baptized David Chongat Yagich. This event led to the downfall of shamanism in the Haruwin. Maughold was subsequently declared a saint as a martyr, but rrequests for David's canonization were denied. The Selk'nam pray often to David Chongat Yagich in hopes that he will do miracles and be made a saint.