Parse this person name:

Leonid Kraus, 1826-1900, flourished 1849-1863
user
first_name: Leonid
last_name: Kraus
middle_names: []
temporal:
- start: 1826
  end: 1900
  type: life_span
- start: 1849
  end: 1863
  type: flourished
titles: []
extra_info: []
assistant