Parse this person name:

Thomas Antoine K. Édith X. Dumont, Letellier, 1352-1424
user
first_name: Thomas
last_name: Dumont
middle_names:
- Antoine
- K.
- Édith
- X.
temporal:
- start: 1352
  end: 1424
  type: life_span
titles: []
extra_info:
- Letellier
assistant