Parse this person name:

Franz-Xaver Juncken (1714-1786, flourished 1735-1747)
user
first_name: Franz-Xaver
last_name: Juncken
middle_names: []
temporal:
- start: 1714
  end: 1786
  type: life_span
- start: 1735
  end: 1747
  type: flourished
titles: []
extra_info: []
assistant