Parse this person name:

Maurits de Gruil, 1349-1419, flourished 1368-1394
user
first_name: Maurits
last_name: de Gruil
middle_names: []
temporal:
- start: 1349
  end: 1419
  type: life_span
- start: 1368
  end: 1394
  type: flourished
titles: []
extra_info: []
assistant