Parse this person name:

Isabell Spieß (1721-1785, flourished 1746-1772)
user
first_name: Isabell
last_name: Spieß
middle_names: []
temporal:
- start: 1721
  end: 1785
  type: life_span
- start: 1746
  end: 1772
  type: flourished
titles: []
extra_info: []
assistant