Parse this person name:

Hermenegildo Planas, 1779-1834, flourished 1797-1826
user
first_name: Hermenegildo
last_name: Planas
middle_names: []
temporal:
- start: 1779
  end: 1834
  type: life_span
- start: 1797
  end: 1826
  type: flourished
titles: []
extra_info: []
assistant