Parse this person name:

Andrzej Jäntsch (1690-1757, flourished 1715-1739)
user
first_name: Andrzej
last_name: Jäntsch
middle_names: []
temporal:
- start: 1690
  end: 1757
  type: life_span
- start: 1715
  end: 1739
  type: flourished
titles: []
extra_info: []
assistant