What is located in Pooneryn, adjacent to the Jaffna Peninsula and was captured by  a governorate established in present-day Sri Lanka by the Dutch East India Company?
Pooneryn fort: Pooneryn Fort (Tamil: பூநகரிக் கோட்டை ; Sinhalese: පූනරීන් බලකොටුව ) is located in Pooneryn, adjacent to the Jaffna Peninsula.
i don't know