The work is a translation from Tibetan of the first chapter of Pagsam-johnsan, the largest monument of Tibetan historical literature written by the Amdo scholar Sumba-khanbo (1704-1788), with a preface and note. The first part of the publication - "The Genealogy of the Kings of Tibet" - actually sets out the political history of Tibet from ancient times to the middle of the 18th century. "Chronological tables" with the author's introduction and conclusion contain the dates of the most important events in the history of Tibet, India, Mongolia and China. The book is designed for Tibetologists, Mongolians and Buddhologists.