Parse this person name:

Sagnelli Mondaini, Ermanno Durante R., 1255-1334
user
first_name: Ermanno
last_name: Sagnelli Mondaini
middle_names:
- Durante
- R.
temporal:
- start: 1255
  end: 1334
  type: life_span
titles: []
extra_info: []
assistant