Augustin Ferdinand Von Hallerstein (1703- 1774) also known as Liu Songling (劉松齡 / 刘松龄), studied the fields of theology, astronomy, geography, medicine and mathematics. He was a missionary and devout Jesuit, honored by the court of the Emperor of China with the title “Mandarin”. Hallerstein lived at the Manchurian imperial court from 1739 until 1774.

• http://www.hallerstein.net/?page_id=15&lang=en
• http://de.wikipedia.org/wiki/August_von_Hallerstein