Parse this person name:

Bragadin-Mantegna, Venancio (flourished 1228-1257), flourished 1228-1257
user
first_name: Venancio
last_name: Bragadin-Mantegna
middle_names: []
temporal:
- start: 1228
  end: 1257
  type: flourished
titles: []
extra_info: []
assistant