Parse this person name:

Jayden van den Assem (1796-1844, flourished 1823-1839)
user
first_name: Jayden
last_name: van den Assem
middle_names: []
temporal:
- start: 1796
  end: 1844
  type: life_span
- start: 1823
  end: 1839
  type: flourished
titles: []
extra_info: []
assistant