Parse this person name:

Volkhard Langern, 1592-1666, flourished 1607-1637
user
first_name: Volkhard
last_name: Langern
middle_names: []
temporal:
- start: 1592
  end: 1666
  type: life_span
- start: 1607
  end: 1637
  type: flourished
titles: []
extra_info: []
assistant