Parse this person name:

Atenulf Renzi (1821-1890, flourished 1846-1860)
user
first_name: Atenulf
last_name: Renzi
middle_names: []
temporal:
- start: 1821
  end: 1890
  type: life_span
- start: 1846
  end: 1860
  type: flourished
titles: []
extra_info: []
assistant