Tibetan calendar
Yonten Gyatso or Yon-tan-rgya-mtsho (1589–1617), was a jinong and the 4th Dalai Lama, born in Mongolia on the 30th day of the 12th month of the Earth-Ox year of the Tibetan calendar. (Other sources, however, say he was born in the 1st month of the Earth Ox Year).