title: Sejm ekstraordynaryjny
text: # Sejm ekstraordynaryjny
  
  Sejm ekstraordynaryjny, sejm nadzwyczajny (special sejm) was a kind of sejm in pre-partition Polish–Lithuanian Commonwealth. It could be convene by the King in special occasions (e.g. war) for two or three weeks.
  
  In 1637 sejm walny prohibited convening sejm ekstraordynaryjny.
  
  