Parse this person name:

Alyssa de Grunt, 1816-1864, flourished 1834-1852
user
first_name: Alyssa
last_name: de Grunt
middle_names: []
temporal:
- start: 1816
  end: 1864
  type: life_span
- start: 1834
  end: 1852
  type: flourished
titles: []
extra_info: []
assistant