Parse this person name:

Michelotto U. Dalla, Covigliaio, flourished 1250-1273
user
first_name: Michelotto
last_name: Dalla
middle_names:
- U.
temporal:
- start: 1250
  end: 1273
  type: flourished
titles: []
extra_info:
- Covigliaio
assistant