Parse this person name:

Richard Horton, 1217-1274, flourished 1241-1252
user
first_name: Richard
last_name: Horton
middle_names: []
temporal:
- start: 1217
  end: 1274
  type: life_span
- start: 1241
  end: 1252
  type: flourished
titles: []
extra_info: []
assistant