Parse this person name:

Sep Timo Keano van Eck-van Wickerode, Vierpolders, flourished 1849-1877
user
first_name: Sep
last_name: van Eck-van Wickerode
middle_names:
- Timo
- Keano
temporal:
- start: 1849
  end: 1877
  type: flourished
titles: []
extra_info:
- Vierpolders
assistant