Parse this person name:

Liam de Jager (1779-1856, flourished 1798-1812)
user
first_name: Liam
last_name: de Jager
middle_names: []
temporal:
- start: 1779
  end: 1856
  type: life_span
- start: 1798
  end: 1812
  type: flourished
titles: []
extra_info: []
assistant