Parse this person name:

Mattias Margraf, 1571-1621, flourished 1590-1612
user
first_name: Mattias
last_name: Margraf
middle_names: []
temporal:
- start: 1571
  end: 1621
  type: life_span
- start: 1590
  end: 1612
  type: flourished
titles: []
extra_info: []
assistant