Parse this person name:

Juan Castellanos, Bárbara Seve Américo Y., 1422-1499
user
first_name: Bárbara
last_name: Juan Castellanos
middle_names:
- Seve
- Américo
- Y.
temporal:
- start: 1422
  end: 1499
  type: life_span
titles: []
extra_info: []
assistant