Coqssei-leel'ee, recorded in modern Naxi orthography and in the Chinese-mediated forms Chenrenli'en and Chonren Lien, is the first ancestor of the Naxi people and the hero of the central Dongba creation myth preserved in the Coqbbertv manuscript. In the story a corrupt humanity is destroyed by a great flood, which Coqssei-leel'ee alone survives through divine warning and aid. He then ascends to heaven, where the sky-god sets him a series of impossible trials to win the hand of the heavenly maiden Chenhong Baobai; with supernatural help he succeeds and brings his bride down to earth. Their union renews the human race, and in the most widely told version their three sons become the founding ancestors of the Tibetan, Naxi, and Bai nationalities, grounding the Naxi self-understanding as 'sons of heaven.' A complementary strand of the tradition makes the ancestor first wed a vertical-eyed goddess who becomes Shu, the Mother of Nature, before taking his horizontal-eyed heavenly wife, so that humankind and nature stand as half-siblings. The Coqbbertv is among the most translated and most culturally representative of all Dongba texts, first rendered in full by the missionary-scholar Elizabeth Scharten in the early 1930s and repeatedly retranslated since.