Parse this person name:

Maurits de Gruil-Vaessen, 1754-1826, flourished 1780-1807
user
first_name: Maurits
last_name: de Gruil-Vaessen
middle_names: []
temporal:
- start: 1754
  end: 1826
  type: life_span
- start: 1780
  end: 1807
  type: flourished
titles: []
extra_info: []
assistant