Parse this person name:

Marvin Metz, 1373-1440, flourished 1400-1429
user
first_name: Marvin
last_name: Metz
middle_names: []
temporal:
- start: 1373
  end: 1440
  type: life_span
- start: 1400
  end: 1429
  type: flourished
titles: []
extra_info: []
assistant