Parse this person name:

Mark Seifert, 1370-1445, flourished 1388-1417
user
first_name: Mark
last_name: Seifert
middle_names: []
temporal:
- start: 1370
  end: 1445
  type: life_span
- start: 1388
  end: 1417
  type: flourished
titles: []
extra_info: []
assistant