Parse this person name:

Brigitte Pierre I. Dumont, Leclercq, flourished 1334-1358
user
first_name: Brigitte
last_name: Dumont
middle_names:
- Pierre
- I.
temporal:
- start: 1334
  end: 1358
  type: flourished
titles: []
extra_info:
- Leclercq
assistant