Parse this person name:

Valerij Flantz-Dussen van (1773-1835, flourished 1799-1812)
user
first_name: Valerij
last_name: Flantz-Dussen van
middle_names: []
temporal:
- start: 1773
  end: 1835
  type: life_span
- start: 1799
  end: 1812
  type: flourished
titles: []
extra_info: []
assistant