Parse this person name:

Marinus Geerts (1245-1285, flourished 1263-1280)
user
first_name: Marinus
last_name: Geerts
middle_names: []
temporal:
- start: 1245
  end: 1285
  type: life_span
- start: 1263
  end: 1280
  type: flourished
titles: []
extra_info: []
assistant